### Home > GC > Chapter 1 > Lesson 1.3.3 > Problem1-125

1-125.

Copy the table below on your paper and complete it for the rule $y = x^2 + 2x − 3$. Then graph and connect the points on graph paper. Name the roots ($x$-intercepts). 1-125 HW eTool (Desmos). Homework Help ✎

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

Use the eTool below to complete the table and view the graph.
Click the link at right for the full version of the eTool: GC 1-125 HW eTool

For $x = −4$,
$y = (−4)² + 2 (−4) −3$
$y = 5$

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

Look for the two points of the parabola that touch the
$x$-axis in order to find the $x$-intercepts.

Now solve for $y$ in terms of the other $x$ values that have been given in the above table.

Does your graph look like the graph above?