Question

Question 1 of 102 PointsThe slope of the line below is – 3. Use the coordinates of the labeled point tofind a point-slope equation of the line.(5.-7)

Answer 1

The slope of a line m can be found by using

`m=(y_2-y_1)/(x_2-x_1)`

You can use any two points on the graph

Let us use points (0, -1), (4, 2)

`\begin{gathered} x_1=0 \\ x_2=4 \\ y_1=-1 \\ y_2=2 \end{gathered}`

Substitute them in the rule

`\begin{gathered} m=(2-(-1))/(4-0) \\ m=(2+1)/(4) \\ m=(3)/(4) \end{gathered}`

The slope is 3/4

Answer A