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MA.912.A.7.1 Graphing Quadratic Equations

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Functions

Polynomials

Rationals-Discrete

In Your Text

Section 9-1 Page 525
Section 9-2 Page 537

What You Need To Know...

Graph quadratic equations.

  1. The benchmark will be assessed using MC (Multiple Choice) items.
  2. Students will identify the graph of a quadratic function given its equation.
  3. All Items will include graphics and may be set in either real-world or mathematical contexts.
  4. Quadratic equations will be presented in standard form only.

Example One

Which of the following is the graph of y = x2 + 2x – 8 ?

7-1.jpg

 

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Example Two

Timmy and Kelli had a water's balloon launcher.  When launched, the water balloon's height could be modeled by the quadratic equation

 A_7_1_Sample_2_eq.png

The graph shown below represents the water balloon's height.

A71_Sample_2.png

Which of the following is true about the water balloon?

  A.  The water balloon reaches a height of 16 meters.
  B.  The water balloon reaches the height of 7.85 meters twice.
  C.  The water balloon has a maximum height of 17.15 meters.
  D.  The water balloon travels for 4.9 seconds before it hits the ground.

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Additional Examples

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Reference Sheet