Question

If a line goes through points (-2, 9) and (0, 3), what is its slope?

3
-3
6
-1/3

Answer 1

The slope of a line is:

`m=-3`

Hence, option B is true.

Explanation:

Given the points

• (-2, 9)

• (0, 3)

Finding the slope between (-2, 9) and (0, 3)

`\mathrm{Slope}=(y_2-y_1)/(x_2-x_1)`

`\left(x_1,\:y_1\right)=\left(-2,\:9\right),\:\left(x_2,\:y_2\right)=\left(0,\:3\right)`

`m=(3-9)/(0-\left(-2\right))`

`m=-3`

Therefore, the slope of a line is:

`m=-3`

Hence, option B is true.