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Algebra L2-3 Quiz v4

Last updated about 2 years ago

8 questions

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0.25

0.25

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Question 1

1.

What is the y-intercept of the line -x+3y=-21 ?

Question 2

2.

Which of the following is an equation for the line shown in the graph below?

3x+2y=5

3x+2y=-5

3x-2y=5

3x-27=-5

Question 3

3.

Which equation is equivalent to y=9x-\frac{3}{5} ?

-45x+5y=-3

-15x+\frac{5}{3}y=-1

9x-3y=5

3x-5y=9

Question 4

4.

Which of the following statements are true about both equations:
4x-2y=8 and 4x-2y=11
Select all that apply.

The line is parallel to y=2x.

The line has the same x-intercept as y=2x.

The is perpendicular to y=-\frac{1}{2}x+5.

The line has the same y-intercept as y=2x.

Question 5

5.

You need to cater a backyard barbeque with a combination of black bean burgers and plant-based bratwurst alternatives. The shindig will have about 80 guests. So you plan on preparing about 100 entrees. Black bean burgers come in packages of 6, and the plant-based bratwursts in packs of 10.

Select an equation that describes the numbers of packs of burgers, x, and bratwursts, y, that you can buy.

-6x+-10y=100

3x-5y=25

x+y=16

3x+5y=50

Question 6

6.

In the scenario from question #5, what is the maximum number of black bean burger packages you can buy?

Question 7

7.

In the scenario from question #5, what is the maximum number of packages of plant-based bratwursts you can buy?

Question 8

8.

BONUS: (maximum of 2 percentage points)
In the scenario from question #5, you decide you want to buy exactly enough for 100 entrees. And you need to have at least some (nonzero) amount of black bean burgers. How much of each do you end up buying, and why?