5999b Skills Check For Sac - Chapters 16, 17 & 18

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| By Anthony Nunan
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Anthony Nunan
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1. What is the youngest age a competitor can be who is starting at 10:00am?

Explanation

Note : closed circle means this value IS included

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About This Quiz
5999b Skills Check For Sac - Chapters 16, 17 & 18 - 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... see morea written section to this quiz. You will need to complete it, and have it corrected, before you sit the SAC. see less

2. From the graph above, is the origin included in the feasible region?

Explanation

The origin is (0, 0) and it is not coloured in, so, its not in the feasible region.

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3. 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? 

Explanation

Breakeven app ... NOTE ... you must use the Integer values when the data is discrete.

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4. 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. 

Explanation

Breakeven will give you the equations, simply by putting in the retail, fixed and varied costs

Submit
5. 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. 

Explanation

Breakeven will give you the equations, simply by putting in the retail, fixed and varied costs

Submit
6. 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. 

Explanation

Breakeven will give you the equations, simply by putting in the retail, fixed and varied costs

Submit
7. 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? 

Explanation

Breakeven app ... NOTE ... you must use the Integer values when the data is discrete.

Submit
8. 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? 

Explanation

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.

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9. 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? 

Explanation

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.

Submit
10. What is the value of 'n' for the graph above?

Explanation

Use your chart - match the shape - look at the value of 'n'

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11. What is the equation for the graph above? (x^2 is x squared)

Explanation

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 1/3

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12. What is the value of n for the graph above?

Explanation

Use your chart - match the shape - look at the value of 'n'

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13. What is the starting time for an athlete who is 13 years old?

Explanation

Note : open circle means this value is NOT included - and you need to go to the next line up.

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14. What is the equation for the graph that is formed from the values above?

Explanation

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 page

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15. 2x+2y=3What is the gradient of the equation above?

Explanation

App - equationlinear - go across to page 1.5

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16. 2x+2y=3What is the y intercept of the equation above?

Explanation

App - equationlinear - go across to page 1.5

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17. 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 thing

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18. 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

gradpoint

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19. What is the equation for the line above? (y=a+bx)

Explanation

twopoints or intercepts should give the answer

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20. 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=

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21. 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.

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22. 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.

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What is the youngest age a competitor can be who is starting at...
From the graph above, is the origin included in the feasible region?
WebDev is a web building company. It sells websites for $850 per...
WebDev is a web building company. It sells websites for $850 per...
WebDev is a web building company. It sells websites for $850 per...
WebDev is a web building company. It sells websites for $850 per...
WebDev is a web building company. It sells websites for $850 per...
WebDev is a web building company. It sells websites for $850 per...
WebDev is a web building company. It sells websites for $850 per...
What is the value of 'n' for the graph above?
What is the equation for the graph above? (x^2 is x squared)
What is the value of n for the graph above?
What is the starting time for an athlete who is 13 years old?
What is the equation for the graph that is formed from the values...
2x+2y=3What is the gradient of the equation above?
2x+2y=3What is the y intercept of the equation above?
2x+2y=3Rearrange the equation above to General Form? (y=a+bx)
A line has a gradient of 4 and passes through the point (1, 2). What...
What is the equation for the line above? (y=a+bx)
What is the equation for the line above?
What is the point of intersection between the lines that define the...
What is the equation of the line that passes through the point (2, 5)...
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