Answer
y=-3x
m=-3
y-intercept=0
Work Step by Step
First isolate y in the given equation.
3y=-9x
$\frac{3y}{3}$=$\frac{-9x}{3}$
y=-3x
y=-3x+0
Now that the equation is in the form of y=mx+b you can see than m=-3 and y-intercept=0
Introductory Algebra for College Students (7th Edition)
by Blitzer, Robert F.
Published by
Pearson
ISBN 10:
0-13417-805-X
ISBN 13:
978-0-13417-805-9
Chapter 3 - Section 3.4 - The Slope-Intercept Form of the Equation of a Line - Exercise Set - Page 252: 20
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