Question

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

Answer 1

Answer:

             $\bold{m=-\dfrac92=-4.5}$

Step-by-step explanation:

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

(2, -9)    ⇒   x₁ = 2,  y₁ = -9

(-2, 9)    ⇒   x₂ = -2,  y₂ = 9

So the slope:

                    $\bold{m=\dfrac{9-(-9)}{-2-2}=\dfrac{18}{-4}=-\dfrac92}$