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McGraw Hill Glencoe Algebra 1, 2012

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McGraw Hill Glencoe Algebra 1, 2012 View details

1. Graphing Linear Equations

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Exercise 32 Page 160

Substituting values from the domain will give the corresponding values from the range.

Table:

x	y
-1	-3
0	0
1	3

Graph:

Practice makes perfect

Let's graph using a table. First select some arbitrary values from the domain, then substitute them for x in the given equation. Solving for y will give us the corresponding values from the range.

x	3x=y	Simplify
-1	3( -1)=y	y= -3
0	3( 0)=y	y= 0
1	3( 1)=y	y= 3

Using these x and y values as ( x, y) coordinate pairs, we can plot the points. Connecting these points will give us the graph of the equation.

Subchapter links

Check Your Understanding p.159

Practice and Problem Solving p.159-161

H.O.T. Problems p.161

Standardized Test Practice p.162

Spiral Review p.162

Skills Review p.162