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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.

$x$	$3 x = y$	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