For this case the first thing that we must observe is the value of f (x) of the function in the table, when the value of x is x = -1
We then have that for x = -1, the value of the function is equal to 0.
Therefore, the following relationship is fulfilled:
Answer:
the value of f (-1) is:
Under 800 square feet of carpet to be cleaned: $0.53 per square foot
800 - 1,500 square feet: $0.49 per square foot
Over 1,500 square feet: $0.42 per square foot
Stairs (standard size): $4.16 each stair
2(s + 5) = 2s + 10, not 2s - 10
2s - 10 = 2s + 10
