Algebra 2 (1st Edition)

Published by McDougal Littell
ISBN 10: 0618595414
ISBN 13: 978-0-61859-541-9

Chapter 3 Linear Systems and Matrices - 3.6 Multiplying Matrices - 3.6 Exercises - Mixed Review - Page 202: 57



Work Step by Step

The equation for a line defined by a point and slope is $y-y_{1}=m(x-x_{1})$ in which $m$ is the slope, which we can calculate from $m=\frac{y_{2}-y_{1}}{x_{2}-x_{1}}$, where $x_{1}$, $x_{2}$, $y_{1}$ and $y_{2}$ are the coordinates of given points, so therefore... $m=\frac{1-8}{0-(-8)}=-\frac{7}{8}$ $y-1=-\frac{7}{8}(x-0)$ $y=-\frac{7}{8}x+1$
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