Question

Show that line passing through points (3,-2) and (-4,-2) is a horizontal line​

Answer 1

Explanation:

horizontal lines will have a gradient(m) of 0

so if m=0 , the line is horizontal

formula to find m:

m=y2-y1 / x2-x1

insert coordinates into formula

`m = ( - 2 - ( - 2))/( - 4 - 3) \\ \\ m = ( - 2 + 2)/( - 7) \\ m = (0)/( - 7) \\ m = 0`

As m=0 , therefore it is a horizonta line.

hope this helps..