algebra problem

Question

Find the area of the triangle formed by the x-axis, y-axis, and the line passing through the points

(4, 0) and (3, 3).

Answer 1

M = -3

B = y - mx = 0 - (-3)(4) = 12

y = -3x + 12

the vertices of the triangle are (0,12), (0,0) and (4,0)

the height is 12, the base is 4, so the area is 24