Answer:
- [tex]\frac{1}{2}[/tex]
Step-by-step explanation:
The measure of the rate of change of a linear function is the slope.
Calculate slope m using the slope formula
m = [tex]\frac{y_{2}-y_{1} }{x_{2}-x_{1} }[/tex]
with (x₁, y₁ ) = (- 15, 3) and (x₂, y₂ ) = (- 7, - 1)
m = [tex]\frac{-1-3}{-7+15}[/tex] = [tex]\frac{-4}{8}[/tex] = - [tex]\frac{1}{2}[/tex] ← rate of change of f(x)
