D. the question implies the fact the furnace is in bad shape. It would cause readers to infer it needs replaced. So he needs to replace the furnace. hope im right
Answer:
1
Step-by-step explanation:
The first step is to understand what the integrand looks like. (See the graph below.)
It is -1 for x < 0 and +1 for x > 0. Thus, the value of this integral is ...

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Essentially, you treat the absolute value as a piecewise linear function. This is the same way you treat an absolute value in any equation or inequality.
Here, this means you divide the integral into two parts: one where the integrand is -x/x, and one where it is +x/x.
y - 0 = 5(x-4)
y = 5x-20
5x - y = 20 Standard Form
Answer:

Step-by-step explanation: