Question

How do you write the equation of the line that contains (1,7) and (-2, 3)?

Answer 1

Find the slope between the two points.

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

Use that slope and pick one of the points to plug into a point-slope equation.

`y-y_1=m(x-x_1)`

Then solve for `y`.