CPM Homework Help : CCA Problem 4-39

Yesterday Mica was given some information and was asked to find a linear equation. But last night her cat destroyed most of the information! At right is all she has left:

This graph has only one point (negative 3, comma 3) placed on a coordinate graph with X and Y axes.

$x$	$\ y\$
$−3$
$−2$	$1$
$−1$
$0$
$1$
$2$
$3$

Complete the table and graph the line that represents Mica’s rule.
Hint 1(a):
Because the equation is linear, the growth must be constant.
Hint 2(a):
Use the points below to graph the line represented by Mica's chart
Mica thinks the equation for this graph could be $2x+y=−3$ . Is she correct? Explain why or why not. If not, find your own algebraic rule to match the graph and $x→y$ table.
Hint (b):
Put the equation into $y=mx+b$ form and see if the growth rate and $y$ -intercept match the line you graphed in part (a).

Use the eTool below to help solve the problem.
Click the link at right for the full version of the eTool: 4-39 HW eTool