Question

Use the point-slope form of a linear equation to write the

equation of the line.
Slope = 3 through (-4,-7)

Answer 1

y +7 = 3(x +4)

Explanation:

You want the point-slope equation of the line with slope 3 through point (-4, -7).

Point-slope equation

The point-slope equation of a line with slope m through point (h, k) is ...

y -k = m(x -h)

Application

For m=3 and (h, k) = (-4, -7), this is ...

y -(-7) = 3(x -(-4)) . . . . . substitute for m, h, k

y +7 = 3(x +4)