Question

A construction company charges $15 per hour for debris removal, plus a one-time fee for the use of a trash dumpster. The total fee for 9 hours of service is $195. Write the point-slope form of an equation to find the total fee y for any number of hours x

Answer 1

y = 60 + 15x

Explanation:

Given:

Per hour charges = $15

Fee for 9 hour = $195

Find:

Slope equation:

Computation:

Assume fixed charges = a

Total fee = Fixed charges + Variable charges

195 = a + 15(9)

Fixed charges = a = $60

Slope equation:

Total fee = y

x = number of hour

So,

Total fee = Fixed charges + Variable charges

y = 60 + 15x