Question

Find the slope of the line that passes through (4,1) and (7,2)

1

1/3

-1/3

-1

Answer 1

The formula of a slope:

`m=(y_2-y_1)/(x_2-x_1)`
We have:

`(4;\ 1)\to x_1=4;\ y_1=1\\(7;\ 2)\to x_2=7;\ y_2=2`
Substitute:

`m=(2-1)/(7-4)=(1)/(3)`