Question

a. Determine the slope of the line that passes through these points. The slope of the line is Total Cost in Dollars b. Determine the y-intercept by finding where the line containing the points crosses the y-axis. Number of Rooms Cleaned

Answer 1

Apply the slope formula:

`m=\text{ }(y2-y1)/(x2-x1)`

Pick two point from the graph:

For example:

Pont 1 = (1,125)

Point 2 = (4,275)

Replace in the slope formula:

`m=(275-125)/(4-1)\text{ = }(150)/(3)=50`

Slope =50

The line crosses th