Question

The lines y = mx + 6, y = x, and the y-axis form a triangle in the first quadrant. suppose this triangle has an area of 10 square units. find m. m =

Answer 1

$\frac{1}{2} \times 6 \times h = 10 > > h =\frac{10}{3} \\ \frac{10}{3} = \frac{10}{3} m + 6 > > \frac{10}{3} m = \frac{ - 8}{3} \\ m = - 0.8$