Question

In the following exercises, solve the following systems of equations by graphing. $\left\{\begin{array}{l}-x+y=2 \\ 2 x+y=-4\end{array}\right.$ 

   In the following exercises, solve the following systems of equations by graphing.
$\left\{\begin{array}{l}-x+y=2 \\ 2 x+y=-4\end{array}\right.$
Intermediate Algebra
Intermediate Algebra
Lynn Marecek 1st Edition
Chapter 4, Problem 6 ↓
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In the following exercises, solve the following systems of equations by graphing. $\left\{\begin{array}{l}-x+y=2 \\ 2 x+y=-4\end{array}\right.$
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Transcript

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00:01 For the following system, i want to solve by graphing.
00:03 To make it a little bit easier, i'm going to turn both of these into y equals mx plus b form.
00:08 That's will be slope intercept.
00:10 So in the first equation, i'm going to just add x over.
00:13 So that's going to be y is equal to a positive x plus two.
00:16 And the second equation, i'm going to subtract 2x over.
00:19 So it's equal to a negative 2x minus 4.
00:22 So the first equation, my slope is 1, my wider shift is a positive 2...
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