CPM Homework Help : INT2 Problem 4-76

Copy the table below on your paper and complete it for the function $y=x^2+2x−3$ . Then make a complete graph on graph paper. Fully describe the graph and state the $x\text{‑}$ and $y\text{‑intercepts}$ .

$x$	$-4$	$-3$	$-2$	$-1$	$0$	$1$	$2$
$y$

Step 1:

For $x=−4$ ,

$y=(−4)^2+2(−4)−3$

$y=5$

Step 2:

Make a graph by plotting the points from the table you have completed.

Step 3:

Use your graph to identify the $x$ and $y\text{‑intercepts}$ .

Use the eTool below to complete the table and view the graph.
Click the link at right for the full version of the eTool: INT2 4-76 HW eTool