Four hundred yards of fence is to be used to enclose a rectangular area next to a straight river. The river bank acts as one side of the rectangle, and the fence is used to make the other three sides of the rectangle. Suppose the width win yards of the rectangle along the river bank
(a) Express the height of the rectangle in terms of w.
(b) Express the area of the rectangle in terms of w

answer:  

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step-by-step explanation: easy

step-by-step explanation:

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y = 5x + 17

step-by-step explanation:

a perpendicular line will be the opposite reciprocal slope of the given equation.   the slope given is -1/5 so the opposite reciprocal is 5

find b:

7 = 5 (-2) + b

7 = -10 + b

17 = b

write equation

y = 5x + 17

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