A line is drawn through the points (-2, 6) and (-4, -12). What is the y-coordinate of the point where this line intersects the y-axis?
(-2, 6) (-y, -12)
x, y, x2 y2
L: y - y, = m (x - x,)
m = (y2 - y1)/ x2 - x1 = (-12 - 6)/-4-(-2) = -18/-2 = 9
L: y - 6 = 9 (x - -2)
L: y - 6 = 9x + 18
L: y = 9x + 24
x = 0
y = 9(0)+24
y = 24