Graphing Quadratics Worksheet Page 7
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21Name: ____________________________________
Period:_________
10.2 Notes
Solving Quadratic Equations
Section 1: Solving Quadratic Equations by Graphing
Solve the quadratic equation by graphing:
Solve the quadratic equation by graphing:
Solutions are ______________________
Solutions are __________________
Directions for graphing using a graphing calculator:
Place the function into the “y=“ function on the calculator. Press “Graph” to see where the
nd
graph crosses the x-axis. Press “2
” then “Graph” to see the list of ordered pairs for the
x-
graph. On your paper, plot all ordered pairs from that list that will fit on your graph. The
value
of the ordered pair where the graph crosses (or touches) the x-axis are the solutions
(Zeros) to the quadratic equation.
Section 2
First, make sure the equation is equal to zero.
Second, factor the equation.
Third, set each factor equal to zero and solve for x.
(Remember Unit 9 Lesson 1???
Solve the equation by factoring:
Solve the equation by factoring:
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