Big Ideas Math - Algebra 1, A Common Core Curriculum

Published by Big Ideas Learning LLC
ISBN 10: 978-1-60840-838-2
ISBN 13: 978-1-60840-838-2

Chapter 3 - Graphing Linear Functions - Chapter Test - Page 169: 4

Answer

The $x−$ intercept is $3$. The $y−$ intercept is $-2$. The slope of the line is $m=\frac{2}{3}$. The graph is shown below.

Work Step by Step

The given linear equation is $\Rightarrow 2x-3y=6$ $x-$ intercept. Substitute $0$ for $y$. $\Rightarrow 2x-3(0)=6$ Simplify. $\Rightarrow 2x+0=6$ $\Rightarrow 2x=6$ Divide each side by $2$. $\Rightarrow \frac{2x}{2}=\frac{6}{2}$ Simplify. $\Rightarrow x=3$ The $x−$ intercept is $3$, so plot the point $A=(3,0)$ $y-$ intercept. Substitute $0$ for $x$. $\Rightarrow 2(0)-3y=6$ Simplify. $\Rightarrow 0-3y=6$ $\Rightarrow -3y=6$ Divide each side by $-3$. $\Rightarrow \frac{-3y}{-3}=\frac{6}{-3}$ Simplify. $\Rightarrow y=-2$ The $y−$ intercept is $-2$, so plot the point $B=(0,-2)$. Draw a line through the points A and B. Isolate $y$ of the given equation. $\Rightarrow y=\frac{2}{3}x-2$ The slope intercept form is $y=mx+c$. The slope of the line is $m=\frac{2}{3}$.
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