T (x) = 0.15 (x-1500) + 150

Rewrite your function as a equation:

y=0.15x - 75

Use the slope-intercept form to find the slope and y-intercept:

y=mx+b

Find the values of m and b using the form y=mx+b

m=0.15

b = - 75

The slope of the line is the value of m, and the y-intercept is the value of b.

Slope: 0.15

Y-Intercept: - 75