Question

Parallel and Perpendicular lines

Question: Find the slope of a line perpendicular to 3x + 5y = 15

Answers: A. -5/3 B. -3/5 C. 3/5 D. 5/3

If someone could help me with this subject I would greatly appreciate it!

Answer 1

3x + 5y = 15
Find the slope by putting equation in
y = mx + b form

Subtract 3x from both sides
5y = -3x + 15
Divide both sides by 5
t = -3/5x + 3
m = -3/5 so perpendicular would be opposite and reciprocal.
m = 5/3
Letter D