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 - 3.4 - Graphing Linear Equations in Standard Form - Exercises - Page 133: 22

Answer

The graph is shown below.

Work Step by Step

The given linear equation is $\Rightarrow -\frac{1}{2}x+y=-4$ $x$ intercept. Substitute $0$ for $y$. $\Rightarrow -\frac{1}{2}x+0=-4$ Simplify. $\Rightarrow -\frac{1}{2}x=-4$ Multiply each side by $-2$. $\Rightarrow -2(-\frac{1}{2}x)=-2(-4)$ Simplify. $\Rightarrow x=8$ The $x-$ intercept is $8$, so plot the point $A=(8,0)$ $y$ intercept. Substitute $0$ for $x$. $\Rightarrow -\frac{1}{2}(0)+y=-4$ Simplify. $\Rightarrow 0+y=-4$ $\Rightarrow y=-4$ The $y-$ intercept is $-4$, so plot the point $B=(0,-4)$ Draw a line through the points $A$ and $B$.
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