Question

The slope of a line perpendicular to A (-4, 2) and B(4, 2) is:

Answer 1

this is eazy.....just take a gradient formula and substitute

Answer 2

Hint:
1. Find the slope of the line using the formula \(\large m = \frac{y_2 - y_1}{x_2 - x_1}\)
2. Take the negative reciprocal of that slope to find the perpendicular line.
3. To check, make sure both slopes multiply to get -1