Example 3

Author:
Walch Education
Topic:
Function Graph, Parabola, Quadratic Functions
Use the intercepts and a point on the graph below to write the equation of the function in standard form.
GeoGebra Applet
  1. Find the -intercepts of the graph and write them as zeros of the equation.
  2. Write the zeros as expressions equal to to determine the factors of the quadratic.
  3. Use the point to find , the coefficient of the term.
  4. Write the equation in standard form.
This applet is provided by Walch Education as supplemental material for their mathematics programs. Visit www.walch.com for more information on their resources.

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