write an equation for the line described: a line whose slope =3 and passes through the point (-2,7) The point-slope formula y - y1 = m[x - x1] gives the equation of the line with slope = m which passes through the point (x1,y1) So plug in 3 for m, -2 for x1, and 7 for y1: y - 7 = 3[x - (-2)] y - 7 = 3[x + 2] y - 7 = 3x + 6 y = 3x + 13 Edwin