SOLUTION: Jasmine has 18.00 to buy books at the used book sale at the library .paperback books cost 3.00 each . the equation y = 18 - 3x represents the amount of money she has left if she bu

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Question 680086: Jasmine has 18.00 to buy books at the used book sale at the library .paperback books cost 3.00 each . the equation y = 18 - 3x represents the amount of money she has left if she buys x of paperback books. graph the equation and describe what the intercepts represents.
Answer by ReadingBoosters(3246) (Show Source):
You can put this solution on YOUR website!
y = -3x + 18
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y intercept at 18
Plot (0, 18)
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x intercept is when y = 0
0 = -3x + 18
-18 = -3x
-18/-3 = x
x = 6
Plot (6, 0)
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Draw a line through the intercepts
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x intercept indicates the maximum books, 6, she can purchase which will leave her with $0.
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y intercept indicates the $18 she starts with before purchasing any books.
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The downward, negative, slope depicts the decrease in $ as the # of books increases, such that the y axis is $ and the x axis is books.
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