8
Y
-5
4
-4
-1
8
7
6
5-
Copy and complete the table below and use it to plot the graph of
y = x² + 4x 1.
-3
-4
4
3-
2-
1
-6-5-4-3-2-10 1 2 3 4
2
-2-
-3-
-4-
Q Zoom
-2
-5
-
-1
Watch video.
0
|º|
1 2
se your graph to estimate solutions to the equation x2 + 4x-1=0.
Answer