# Linear Equations App Quiz! Trivia Questions

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| By Anthony Nunan
A
Anthony Nunan
Community Contributor
Quizzes Created: 136 | Total Attempts: 44,016
Questions: 16 | Attempts: 160

Settings

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• 1.

### Which App Should I use to solve this problem : What is the equation for a line with a gradient of 5 and a y-intercept of 7?

• A.

Ab

• B.

Clearvariables

• C.

Equationcompare

• D.

Equationlinear

• E.

Expressevaluate

• F.

Intercepts

• G.

Makesubject

• H.

Recursion

• I.

Settings

• J.

Simequations

• K.

Twopoints

A. Ab
Explanation
The correct answer is "ab". The "ab" app is likely a mathematical application that can be used to solve equations. In this case, the equation for a line with a gradient of 5 and a y-intercept of 7 can be solved using the "ab" app.

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• 2.

### Which App Should I use to solve this problem :I am given three values for a Difference Equation. a=5, r=4 and d=3. What is the value for the 5th term?

• A.

Ab

• B.

Clearvariables

• C.

Equationcompare

• D.

Equationlinear

• E.

Expressevaluate

• F.

Intercepts

• G.

Makesubject

• H.

Recursion

• I.

Settings

• J.

Simequations

• K.

Twopoints

H. Recursion
Explanation
The given problem involves a difference equation, which is a type of recursive equation. The term "recursion" refers to the process of solving a problem by breaking it down into smaller, similar subproblems. In this case, the 5th term of the difference equation can be found by using the given values of a, r, and d. Therefore, the recursion app would be the most appropriate to use for solving this problem.

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• 3.

### Which App Should I use to solve this problem :Solve the equation 26=12y - 2

• A.

Ab

• B.

Clearvariables

• C.

Equationcompare

• D.

Equationlinear

• E.

Expressevaluate

• F.

Intercepts

• G.

Makesubject

• H.

Recursion

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Settings

• J.

Simequations

• K.

Twopoints

G. Makesubject
Explanation
The correct answer is "makesubject". In order to solve the equation 26=12y - 2, we need to isolate the variable y. The "makesubject" app allows us to rearrange the equation so that the variable y is on one side of the equation and the constant terms are on the other side. This app helps us simplify and solve the equation by making the variable the subject of the equation.

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• 4.

### Which App Should I use to solve this problem :I have the equation y=2x-4. How do I solve for x?

• A.

Ab

• B.

Clearvariables

• C.

Equationcompare

• D.

Equationlinear

• E.

Expressevaluate

• F.

Intercepts

• G.

Makesubject

• H.

Recursion

• I.

Settings

• J.

Simequations

• K.

Twopoints

G. Makesubject
Explanation
The "makesubject" app allows you to rearrange the equation to make "x" the subject. In this case, you can rearrange the equation "y=2x-4" to solve for "x" by adding 4 to both sides and then dividing by 2. This will give you the value of "x".

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• 5.

### Which App Should I use to solve this problem :I am given a line that crosses the y axis at 3 and the x axis and 12. What is the equation for the line?

• A.

Ab

• B.

Clearvariables

• C.

Equationcompare

• D.

Equationlinear

• E.

Expressevaluate

• F.

Intercepts

• G.

Makesubject

• H.

Recursion

• I.

Settings

• J.

Simequations

• K.

Twopoints

F. Intercepts
Explanation
The correct answer is "intercepts". The question asks for the equation of a line that crosses the y-axis at 3 and the x-axis at 12. The intercepts of a line are the points where it crosses the x-axis and the y-axis. Therefore, using the intercepts method would be the most appropriate way to solve this problem and find the equation of the line.

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• 6.

### Which App Should I use to solve this problem : I know that x is 5 and y is -2, how would I find the value of 3x-5y?

• A.

Ab

• B.

Clearvariables

• C.

Equationcompare

• D.

Equationlinear

• E.

Expressevaluate

• F.

Intercepts

• G.

Makesubject

• H.

Recursion

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Settings

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Simequations

• K.

Twopoints

E. Expressevaluate
Explanation
The app "expressevaluate" can be used to find the value of the expression 3x-5y. By plugging in the given values of x and y (x=5 and y=-2) into the expression, we can evaluate it to get the result. In this case, substituting x=5 and y=-2 into 3x-5y gives us 3(5)-5(-2), which simplifies to 15+10, resulting in a final value of 25.

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• 7.

### Which App Should I use to solve this problem : Is the equation y=2x+4 the same as the equation 2y-8=4x?

• A.

Ab

• B.

Clearvariables

• C.

Equationcompare

• D.

Equationlinear

• E.

Expressevaluate

• F.

Intercepts

• G.

Makesubject

• H.

Recursion

• I.

Settings

• J.

Simequations

• K.

Twopoints

C. Equationcompare
Explanation
The correct answer is "equationcompare". This app is specifically designed to compare equations and determine if they are the same. In this case, the app would analyze the given equations y=2x+4 and 2y-8=4x to determine if they are equivalent or not. It would compare the coefficients and constants on both sides of the equations to make this determination.

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• 8.

### Which App Should I use to solve this problem : What is the equation for a line given the point (0, 7) and a gradient of 4?

• A.

Ab

• B.

Clearvariables

• C.

Equationcompare

• D.

Equationlinear

• E.

Expressevaluate

• F.

Intercepts

• G.

Makesubject

• H.

Recursion

• I.

Settings

• J.

Simequations

• K.

Twopoints

A. Ab
• 9.

### I have worked out an equation to be y=2x+4, but I have several multiple choice answer that are all different. How can I check if my answer is the same as one of those given?

• A.

Ab

• B.

Clearvariables

• C.

Equationcompare

• D.

Equationlinear

• E.

Expressevaluate

• F.

Intercepts

• G.

Makesubject

• H.

Recursion

• I.

Settings

• J.

Simequations

• K.

Twopoints

C. Equationcompare
Explanation
To check if your answer is the same as one of the given options, you can use the "equationcompare" function. This function allows you to compare your equation (y=2x+4) with each of the multiple-choice answers. By inputting your equation and the options into the "equationcompare" function, you can determine if any of the options match your answer.

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• 10.

### Which App Should I use to solve this problem :Given 2x-y, and the value for x is 5 and y is -2, how would I find the value for the expression?

• A.

Ab

• B.

Clearvariables

• C.

Equationcompare

• D.

Equationlinear

• E.

Expressevaluate

• F.

Intercepts

• G.

Makesubject

• H.

Recursion

• I.

Settings

• J.

Simequations

• K.

Twopoints

E. Expressevaluate
Explanation
To find the value for the expression 2x-y, substitute the given values of x and y into the expression. In this case, x is 5 and y is -2. So, substitute these values into the expression: 2(5)-(-2). Simplify the expression to get the final value.

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• 11.

### Which App Should I use to solve this problem :I am given two lines. The first has a y intercept of 4, and an x intercept of 2. The second has an x intercept of 4 and a y intercept of 2. What are the coordinates of the point where they cross?

• A.

Ab

• B.

Clearvariables

• C.

Equationcompare

• D.

Equationlinear

• E.

Expressevaluate

• F.

Intercepts

• G.

Makesubject

• H.

Recursion

• I.

Settings

• J.

Simequations

• K.

Twopoints

F. Intercepts
Explanation
The correct answer is "intercepts". The question asks for the coordinates of the point where the two lines cross. In order to find this point, we need to determine the intercepts of each line. The first line has a y-intercept of 4 and an x-intercept of 2, while the second line has an x-intercept of 4 and a y-intercept of 2. By finding the intercepts of each line, we can determine the coordinates of the point where they cross.

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• 12.

### Which App Should I use to solve this problem :I have the coordinates (4, 2) and (8, 4). What is the equation for the line?

• A.

Ab

• B.

Clearvariables

• C.

Equationcompare

• D.

Equationlinear

• E.

Expressevaluate

• F.

Intercepts

• G.

Makesubject

• H.

Recursion

• I.

Settings

• J.

Simequations

• K.

Twopoints

K. Twopoints
Explanation
The correct answer is "twopoints" because the given problem involves finding the equation for a line given two points. The "twopoints" function in the app is specifically designed to solve this type of problem. It takes the coordinates of two points and calculates the equation for the line passing through those points.

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• 13.

### Which App Should I use to solve this problem :I have a graph with a line on it, and I need the equation for the line.

• A.

Ab

• B.

Clearvariables

• C.

Equationcompare

• D.

Equationlinear

• E.

Expressevaluate

• F.

Intercepts

• G.

Makesubject

• H.

Recursion

• I.

Settings

• J.

Simequations

• K.

Twopoints

K. Twopoints
Explanation
The correct answer is "twopoints". To find the equation for a line on a graph, you need to know the coordinates of two points on the line. The "twopoints" app is likely designed to help you input the coordinates of two points and then calculate the equation of the line passing through those points.

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• 14.

### Which App Should I use to solve this problem : If 3 cows and 2 sheep cost \$1000, and 2 cows and 4 sheep cost \$800, how much is each sheep and each cow?

• A.

Ab

• B.

Clearvariables

• C.

Equationcompare

• D.

Equationlinear

• E.

Expressevaluate

• F.

Intercepts

• G.

Makesubject

• H.

Recursion

• I.

Settings

• J.

Simequations

• K.

Twopoints

J. Simequations
• 15.

### Which App Should I use to solve this problem :I start with 1000 dollars, and earn 5% interest per annum. I also deposit \$300 at the end of each year. How much will I have in 5 years time?

• A.

Ab

• B.

Clearvariables

• C.

Equationcompare

• D.

Equationlinear

• E.

Expressevaluate

• F.

Intercepts

• G.

Makesubject

• H.

Recursion

• I.

Settings

• J.

Simequations

• K.

Twopoints

H. Recursion
Explanation
Recursion is the correct answer because it allows for the repeated calculation of a value based on a previous value. In this problem, the amount of money accumulated each year is dependent on the previous year's amount, as well as the interest earned and the additional deposit. By using recursion, the calculation can be done iteratively for each year, resulting in the total amount of money accumulated after 5 years.

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• 16.

### Which App Should I use to solve this problem :I have two equations, each with two unknowns. I want to find the value of each unknown variable.

• A.

Ab

• B.

Clearvariables

• C.

Equationcompare

• D.

Equationlinear

• E.

Expressevaluate

• F.

Intercepts

• G.

Makesubject

• H.

Recursion

• I.

Settings

• J.

Simequations

• K.

Twopoints

J. Simequations
Explanation
The correct answer is "simequations" because it is an app specifically designed to solve systems of equations with multiple unknowns. It can help find the values of each unknown variable by using various methods such as substitution, elimination, or matrix operations. This app is likely to provide the most efficient and accurate solution to the given problem.

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