Question

What is the slope (2,-9) (-2,9)

Answer 1

`\bold{m=-\frac92=-4.5}`

Explanation:

`\bold{slope\, (m)=(change\ in\ Y)/(change\ in\ X)=(y_2-y_1)/(x_2-x_1)}`

(2, -9) ⇒ x₁ = 2, y₁ = -9

(-2, 9) ⇒ x₂ = -2, y₂ = 9

So the slope:

`\bold{m=(9-(-9))/(-2-2)=(18)/(-4)=-\frac92}`