Algebra Ii Unit V: Quadratics Unit Notes Packet Functions Worksheet Page 11
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23Steps to Solve Quadratics by Graphing
I. Make sure the quadratic is set equal to 0.
II. Change the equation into a function. (Replace 0 with “y”)
III. Graph the quadratic function.
a. Find and graph the Axis of Symmetry
b. Find and graph the vertex.
c. Find two points on the same side of the Axis of Symmetry.
d. Use symmetry to plot points.
IV. Find where the graph
V. Write each solution.
Practice: 2 Solutions. Solve the quadratic equation by graphing.
2
2
1.
x
+ x
6
8
0
2.
x
4
x
3
0
+
=
−
−
−
=
11
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