What is the slope of the line?

Question

What is the slope of the line?

Answer 1

The slope is the (change in y)/(change in x)

Taking the points (1,5) and (3,-5)

slope = m = (-5-5)/(3-1) = -10/2 = -5

Slope-Intercept of the line:

y = -5x + 10

Check y(4) = -20 + 10 = -10 which matches the graph above.