Algebra 1

Published by Prentice Hall
ISBN 10: 0133500403
ISBN 13: 978-0-13350-040-0

Chapter 5 - Linear Functions - 5-4 Point-Slope Form - Practice and Problem-Solving Exercises - Page 316: 10



Work Step by Step

The point-slope form of an equation of a non-vertical line with slope $m$ and through point $(x_1,y_1)$ is $y-y_1=m(x-x_1)$. We plug in $-2$ for $x_1$, $-7$ for $y_1$, and $\frac{4}{5}$ for $m$ to get the equation: $y-(-7)=\frac{4}{5}(x-(-2))$ We simplify: $y+7=\frac{4}{5}(x+2)$
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