Question

What is the slope of the line through (-1,-7) and (3, 9)?

Answer 1

m= 4

Explanation:

Use y2 - y1 / x2 - x1 to find the slope.

9-(-7) / 3-(-1) =

16 / 4 = 4

Answer 2

The slope is 4.

Explanation:

To solve this problem, all you have to do is use the slope formula.

`\text{SLOPE:}`

`\Longrightarrow: \sf{(y_2-y_1)/(x_2-x_1)=(RISE)/(RUN) }`

• y2=9
• y1=(-7)
• x2=3
• x1=(-1)

Rewrite the problem.

`\Longrightarrow: \sf{(9-\left(-7\right))/(3-\left(-1\right))=(9+7)/(3+1)=(16)/(4)=\boxed{\sf{4}}`

• Therefore, the slope is 4.