Question

What is the formula for finding the slope of the line?

Answer 1

Explanation:

Example finding the slope of the line : ⇒ (1,8) and (2,4)

Slope formula:

`\displaystyle (y_2-y_1)/(x_2-x_1)`

`\displaystyle y_2=4\\\displaystyle y_1=8\\\displaystyle x_2= 2\\\displaystyle x_1= 1\\`

`\displaystyle (4-8)/(2-1)=(-4)/(1)=-4`

Therefore, the slope is -4, -4 is the correct answer.

Answer 2

See below.

Explanation:

Slope = rise / run = (y2-y1) / (x2, x1) where (x1, y1) and (x2, y2) are 2 points on the line.