Question

Madeline needs to find the slope of the line that passes through the points (9, 12) and (7,4) she sets up the following work​

Answer 1

Answer:

         4

Step-by-step explanation:

The slope of the line passing through two given points:  $m=\dfrac{y_2-y_1}{x_2-x_1}$

(9, 12)   ⇒   x₁ = 9,  y₁ = 12

(7, 4)   ⇒     x₂ = 7,  y₂ = 4

So, the slope:

                     $m=\dfrac{4-12}{7-9}=\dfrac{-8}{-2}=4$