y ≤ x2 + 2x − 8
Choose values for x and solve for y in order to find points on the graph.
0 ≤ 02 + 2(0) − 8
0 ≤ −8
False. Therefore, it is not shaded on the inside of the graph.
Test a point on one inside of the graph. Try (0,0).
Shade in the area opposite the point (0, 0).
Use the eTool below to help graph the inequality.
Click on the link at right for the full eTool version: CCA 9-105 HW eTool