# Parallel & perpendicular lines from equation

Use your knowledge about the slopes of parallel and perpendicular lines to solve some problems. For example, what's the equation of the line perpendicular to y=3x-3 and passes through the point (-8, -2).

### Problem

Find the slope and y-intercept of the line that is start color green, p, a, r, a, l, l, e, l, end color green to start color blue, y, equals, 3, x, minus, 3, end color blue and passes through the point start color red, left parenthesis, minus, 2, comma, minus, 7, right parenthesis, end color red.
m =
b =