Question

Find the slope of the line joining the two points A(0,4) B(4,0)

Answer 1

Answer:

$x1 = 0 \\ x2 = 4 \\ y1 = 4 \\ y2 = 0 \\ m = \frac{y2 - y1}{x2 - x1} \\ m = \frac{0 - 4}{4 - 0} \\ \frac{ - 4}{4} = - 1$