Question #8469f

1 Answer
Oct 23, 2016

They intersect at (2, 9) and they are NOT perpendicular.

Explanation:

Subtract the first from the second to obtain the x coordinate of intersection:

y - y = 3x + 3x - 15 + 3

0 = 6x - 12

x = 2

The them to obtain the y coordinate of intersection:

y + y = 3x - 3x + 15 + 3

2y = 18

y = 9

They are not perpendicular, because the slopes are not the negative reciprocal of each other.