5999b Skills Check For Sac - Chapters 16, 17 & 18
-
2x+2y=3What is the gradient of the equation above?
About This Quiz
Check your skills on this quiz - look at the explanations on the questions you get wrong, and see me about things you don't understand.
There is also a written section to this quiz. You will need to complete it, and have it corrected, before you sit the SAC.
Quiz Preview
- 2.
2x+2y=3What is the y intercept of the equation above?
Explanation
App - equationlinear - go across to page 1.5Rate this question:
- 3.
2x+2y=3Rearrange the equation above to General Form? (y=a+bx)
Explanation
App - equationlinear - go across to page 1.5
makesubject will do the same thingRate this question:
- 4.
A line has a gradient of 4 and passes through the point (1, 2). What is the equation of the line in General Form? y=a+bx
Explanation
gradpointRate this question:
- 5.
What is the equation for the line above? (y=a+bx)
Explanation
twopoints or intercepts should give the answerRate this question:
- 6.
What is the equation for the line above?
Explanation
Apps don't help with vertical and horizontal lines. You have to know them. Vertical is x=, horizontal is y=Rate this question:
- 7.
What is the point of intersection between the lines that define the two inequalties above?
Explanation
Answer in coordinate form should be (-3, 3). Other variations are INCORRECT, but have not been penalised.Rate this question:
- 8.
What is the equation of the line that passes through the point (2, 5) and is parallel to the equation y=-0.5x+5?
Explanation
makesubject will give you the parallel gradient - so will equationlinear.
Then - you can use gradpoint to find the equation.Rate this question:
- 9.
From the graph above, is the origin included in the feasible region?
-
No
-
Yes
Correct Answer
A. NoExplanation
The origin is (0, 0) and it is not coloured in, so, its not in the feasible region.Rate this question:
-
- 10.
WebDev is a web building company. It sells websites for $850 per annum.The running costs for the business are $12000 per annum, and each site they sell costs $300 in design and other services.How much money does WebDev need to make each year before it starts to make a profit?
Correct Answer
$18700Explanation
Breakeven app ... NOTE ... you must use the Integer values when the data is discrete.Rate this question:
- 11.
WebDev is a web building company. It sells websites for $850 per annum.The running costs for the business are $12000 per annum, and each site they sell costs $300 in design and other services.How many websites does WebDev need to sell each year before it starts to make a profit?
Correct Answer
22Explanation
Breakeven app ... NOTE ... you must use the Integer values when the data is discrete.Rate this question:
- 12.
WebDev is a web building company. It sells websites for $850 per annum.The running costs for the business are $12000 per annum, and each site they sell costs $300 in design and other services.If they make a profit of approximately $30000, how many sites did they sell?
Correct Answer
76Explanation
Breakeven populates the memory with the retail, fixed and variable costs.
profitloss will then give you the values for profit - units is the number of units sold, profit is the amount of profit made (it can be negative - that's a loss) and Revenue tells you how much money was made before costs.Rate this question:
- 13.
WebDev is a web building company. It sells websites for $850 per annum.The running costs for the business are $12000 per annum, and each site they sell costs $300 in design and other services.If the revenue is $95000 how much profit will they make?
Correct Answer
$49600Explanation
Breakeven populates the memory with the retail, fixed and variable costs.
profitloss will then give you the values for profit - units is the number of units sold, profit is the amount of profit made (it can be negative - that's a loss) and Revenue tells you how much money was made before costs.Rate this question:
- 14.
What is the value of 'n' for the graph above?
Correct Answer
3Explanation
Use your chart - match the shape - look at the value of 'n'Rate this question:
- 15.
What is the equation for the graph above? (x^2 is x squared)
Correct Answer
y=1/3x^3Explanation
Use your chart - match the shape - look at the value of 'n'
Then, use the app - pointequ - to plot the point and the value for 'n' - go to page 1.5 for your answer
If you wrote y=0.33x^3, you were close, but should have recognised it was 1/3Rate this question:
- 16.
What is the value of n for the graph above?
Correct Answer
-1Explanation
Use your chart - match the shape - look at the value of 'n'Rate this question:
- 17.
What is the starting time for an athlete who is 13 years old?
Correct Answer
11:00am
11:00 amExplanation
Note : open circle means this value is NOT included - and you need to go to the next line up.Rate this question:
- 18.
What is the youngest age a competitor can be who is starting at 10:00am?
Correct Answer
11
11 years
11 years oldExplanation
Note : closed circle means this value IS includedRate this question:
- 19.
What is the equation for the graph that is formed from the values above?
Correct Answer
y=3/xExplanation
plotvalues - go to page 1.5 to see what the shape of the graph is. Its a hyperbola so n = -1
pointequ - use the value of n, and one point (1, 3) to solve the y=kxn equation
go to page 1.7 and write out the equation from the top of the pageRate this question:
- 20.
WebDev is a web building company. It sells websites for $850 per annum.The running costs for the business are $12000 per annum, and each site they sell costs $300 in design and other services.Write the revenue equation for this problem, using R as revenue and 'n' as the number of sites sold.
Correct Answer
r=850nExplanation
Breakeven will give you the equations, simply by putting in the retail, fixed and varied costsRate this question:
- 21.
WebDev is a web building company. It sells websites for $850 per annum.The running costs for the business are $12000 per annum, and each site they sell costs $300 in design and other services.Write the cost equation for this problem, using C as cost and 'n' as the number of sites sold.
Correct Answer
C=12000+300n
C=300n+12000Explanation
Breakeven will give you the equations, simply by putting in the retail, fixed and varied costsRate this question:
- 22.
WebDev is a web building company. It sells websites for $850 per annum.The running costs for the business are $12000 per annum, and each site they sell costs $300 in design and other services.Write the profit equation for this problem, using P as Profit and 'n' as the number of sites sold.
Correct Answer
P=550n-12000
P=-12000+550nExplanation
Breakeven will give you the equations, simply by putting in the retail, fixed and varied costsRate this question:
Quiz Review Timeline (Updated): Mar 15, 2023 +
Our quizzes are rigorously reviewed, monitored and continuously updated by our expert board to maintain accuracy, relevance, and timeliness.
-
Current Version
-
Mar 15, 2023Quiz Edited by
ProProfs Editorial Team -
Aug 09, 2014Quiz Created by
Anthony Nunan
- Academic Quizzes
- Adult Learning Quizzes
- Blended Learning Quizzes
- Career Quizzes
- Coaching Quizzes
- College Quizzes
- Communication Quizzes
- Curriculum Quizzes
- Distance Learning Quizzes
- Early Childhood Education Quizzes
- GCSE Quizzes
- Kindergarten Quizzes
- Knowledge Quizzes
- Literacy Quizzes
- Online Assessment Quizzes
- Online Exam Quizzes
- Online Test Quizzes
- Physical Education Quizzes
- Qualification Quizzes
- School Quizzes
- Special Education Quizzes
- Subject Quizzes
- Teaching Quizzes
- Theory Quizzes
- University Quizzes
Back to top