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How do i figure out the last problems 5 and 3?

How do i figure out the last problems 5 and 3?-example-1
User Chonnychu
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For 3, you need to graph the equation of the line: y = -150x + 1800

What you can do is plot the x-intercept and y-intercept and then draw a straight line between them.

The y-intercept is (0,1800) because if you purchase zero shoes, you will have all $1800 left over.

The x-intercept is (12,0) because if you purchase 12 shoes, you will have zero dollars left over.

So plot (0,1800) and (12,0) for problem #3.

Problem #5, I already answered above. The x-intercept tells you how many shoes you can buy if you spend all your money (12 pair of shoes).
User Akhil Sekharan
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