1.
If f(x) represents a radical expressions, then y = f (x) is?
Correct Answer
A. A. radical functions
Explanation
If f(x) represents a radical expression, then y = f(x) is a radical function. A radical function is a type of function that involves a square root or other radical expressions. In this case, since f(x) represents a radical expression, when we set y equal to f(x), we are essentially defining a function where the output (y) is determined by the input (x) through a radical expression. Therefore, the correct answer is a. radical functions.
2.
What is the domain of f(x)=+3 ?
Correct Answer
B. B. x>-1
Explanation
The domain of a function refers to the set of all possible input values for the function. In this case, the function f(x) = +3 does not have any restrictions on the input value x. Therefore, any value of x is valid for this function. The inequality x > -1 represents all values of x that are greater than -1, which includes all possible input values for the function. Hence, the correct answer is b. x > -1.
3.
Which is the correct graph of f(x)= -1 ?
Correct Answer
A. A.
Explanation
The correct graph for the function f(x) = -1 is a horizontal line that is parallel to the x-axis and intersects the y-axis at -1. This means that for any value of x, the function will always have a y-value of -1.
4.
Which is the correct graph of f(x)= +2 ?
Correct Answer
D. D.
Explanation
The graph of f(x) = +2 represents a horizontal line at y = 2. Option d is the only graph that shows a horizontal line at y = 2, while the other options show different types of curves and lines that do not represent a constant value of 2.
5.
Which is the correct graph of f(x)= +3 ?
Correct Answer
A. A.
6.
What is the x-intercepts of these functions:
f(x)=
Correct Answer
A. A. -2
Explanation
The x-intercept of a function is the value of x where the function crosses the x-axis, meaning the y-value is equal to zero. In this case, the x-intercept of the function f(x) is -2, which means that when x is equal to -2, the function crosses the x-axis. Therefore, the correct answer is a. -2.
7.
In the given function at number six, what is the y-intercepts?
Correct Answer
C. C.-1/2
Explanation
The y-intercept of a function is the point where the graph of the function intersects the y-axis. In this case, the y-intercept is -1/2. This means that when x is equal to 0, the value of the function is -1/2. The answer options a and b, 6 and -12, are not correct because they do not represent the y-intercept of the function. Therefore, the correct answer is c.-1/2.
8.
Name the vertical line of x in equation number six;
Correct Answer
C. C. x=4
Explanation
The correct answer is c. x=4. This equation represents a vertical line because the value of x is constant at 4, while the value of y can vary. A vertical line has an undefined slope and is parallel to the y-axis.
9.
What is the domain of f(x)=?
Correct Answer
B. B. x>0
Explanation
The correct answer is b. x>0. This is because the function f(x) is only defined for values of x that are greater than 0. Any value of x that is less than or equal to 0 would not be in the domain of the function.
10.
What is the correct graph of f(x)=/
Correct Answer
B. B.
11.
What is the domain of f(x)= +1?
Correct Answer
A. A.2x-3>0
Explanation
The correct answer is a. 2x-3>0. This is because the domain of a function represents all the possible input values for which the function is defined. In this case, the function f(x) = +1 does not have any restrictions or limitations on the input values. Therefore, any value of x that satisfies the inequality 2x-3>0 will be included in the domain of the function.
12.
In this function, find the correct graph?
Correct Answer
D. D.
13.
In this function the graph shows?
Correct Answer
B. B.increasing
Explanation
The correct answer is b. increasing. This can be inferred from the graph provided, which shows a continuous upward trend. The values on the y-axis are progressively getting larger as the values on the x-axis increase. Therefore, the graph is depicting an increasing relationship between the variables.
14.
In graphing radical functions usually means?
Correct Answer
A. A."grapHing functions involving square roots",
Explanation
The correct answer is a. "graphing functions involving square roots". Graphing radical functions refers to graphing functions that involve square roots. This means plotting points on a coordinate plane that represent the solutions of equations containing square roots. The graph of a radical function typically includes a curve or line that represents the square root function. This type of graphing is commonly used in algebra and calculus to visualize and analyze functions involving square roots.
15.
In graphing radical functions the graph is?
Correct Answer
D. D. curve line
Explanation
In graphing radical functions, the graph is a curve line. This is because radical functions involve taking the square root or higher order roots of a variable, which results in a curve when graphed. The shape of the curve can vary depending on the specific radical function, but it will always be a curve rather than a straight line, horizontal line, or extended line.
16.
What is the domain of +3?
Correct Answer
A. A. x>-1/4
Explanation
The domain of the expression +3 is all real numbers. The expression +3 does not involve any variables, so there are no restrictions on the values that x can take. Therefore, x can be any real number, which means that the correct answer is a. x > -1/4.
17.
17. what is the correct graph of f(x)= ?
Correct Answer
A. A.
18.
In graphing radical functions can we consider first the domain of the function?
Correct Answer
A. A. yes
Explanation
When graphing radical functions, it is important to consider the domain of the function. The domain refers to the set of all possible input values for the function. Since radical functions involve taking the square root or other roots of a number, it is necessary to ensure that the radicand (the expression inside the radical) is non-negative. If the radicand is negative, the function is undefined. Therefore, considering the domain is crucial in order to accurately graph the radical function.
19.
In finding the domain of radical functions we use;
Correct Answer
B. B. >
Explanation
In finding the domain of radical functions, we use the inequality symbol ">" because it represents that the value inside the radical must be greater than or equal to zero. This is because the square root of a negative number is undefined in the real number system. Therefore, we need to ensure that the expression inside the radical is positive or zero to have a valid domain for the radical function.
20.
What is the correct graph of f(x)= ?
Correct Answer
A. A.