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Year 12 Simultaneous equations pretest

Posljednje ažuriranje over 4 years ago

8

Napomena autora:

Year 12 Standard 2 pretest

Obavezno

1

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Pitanje 8

8.

The table below shows the speed v (in km/s) of a plane at time t seconds.
Determine a linear model in the form y=mx+c to describe this situation. (write a rule to fit the table of values)

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1

Pitanje 1

1.

What is the gradient of this line?

-3/2

-2/3

2/3

3/2

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Pitanje 4

4.

The cost of manufacturing bags (C ) is given by the formula c=40x+150, where x is the number of bags sold. What is the cost of manufacturing two bags?

$40

$150

$190

$230

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1

Pitanje 5

5.

What is the profit for selling 1212 items?

$10

$20

$220

$240

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1

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1

Pitanje 2

2.

What is the y-intercept of this line?

-2

-1

1

2

Pitanje 3

3.

What is the equation of this line?

Pitanje 6

6.

What is the break-even point?

10 items

12 items

20 items

80 items

Pitanje 7

7.

What is the loss for selling 55 items?

$20

$30

$40

$50