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3 years ago

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

Mathematics

1 answer:

Aleks04 [339]3 years ago

5 0

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:

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

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