linear eaquation

Question

A landscaping company charges $47 per cubic yard of mulch plus a delivery charge of $20. Find a linear function which computes the total cost C (in dollars) to deliver  cubic yards of mulch.

Answer 1

The delivery charge of $20 is a constant and will represent the y-intercept.

The $47 per cubic yard of mulch will represent the slope.

Using the slope-intercept form (y = mx +b), substitute those numbers.

C = 47x + 20