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7-5 solving quadratic equations (Day 2)

7-5 solving quadratic equations (Day 2) . Algebra 1 CP Objective: Solve quadratic equations and find if a quadratic equation has two solutions, one solution, or no solutions. Warm Up. http://nlvm.usu.edu/en/nav/frames_asid_182_g_4_t_2.html?from=topic_t_2. html (Copy & Paste in Firefox).

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7-5 solving quadratic equations (Day 2)

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  1. 7-5 solving quadratic equations (Day 2) Algebra 1 CP Objective: Solve quadratic equations and find if a quadratic equation has two solutions, one solution, or no solutions.

  2. Warm Up • http://nlvm.usu.edu/en/nav/frames_asid_182_g_4_t_2.html?from=topic_t_2.html • (Copy & Paste in Firefox)

  3. Standard form of a quadratic equation • A quadratic equation is an equation that can be written in standard form: • ax2 + bx + c = 0, where a ≠0 • Ex: Write 3x2= - 2x +12 in standard form.

  4. City planning • A city is planning a circular duck pond for a new park. The depth of the pond will be 4 ft. Because of water resources, the maximum volume will be 20,000 ft3. Find the radius of the pond. Use the equation V=πr2h, where V is the volume, r is the radius, and h is the depth.

  5. Solve 4x2 – 100 = - 100

  6. Solve x2 – 9 = 16

  7. homework • 7-5 worksheet • Study for quiz tomorrow!!!!

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