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Warm Up . Because he felt intimidated in his new position, he was ------- divulging his frank opinions of company proposals. (A) scurrilous about (B) candid in (C) chary of (D) fervid about (E) precipitate in. Algebra 3. Chapter 5 Lesson 6: Quadratic Formula and the Discriminant. VOCAB.

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Warm Up

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Warm Up

  • Because he felt intimidated in his new position, he was ------- divulging his frank opinions of company proposals.

  • (A) scurrilous about

  • (B) candid in

  • (C) chary of

  • (D) fervid about

  • (E) precipitate in


Algebra 3

Chapter 5

Lesson 6: Quadratic Formula and the Discriminant


VOCAB

  • Quadratic Formula – is a formula that will give you the x-intercepts to ANY quadratic equation

  • Discriminant – tells you how many real solutions a quadratic equation has (how many times the graph crosses the x-axis)

    • 2 is when the discriminant is greater than 0

    • 1 is when the discriminant is 0

    • 0 is when the discriminant is less than 0


DIRECTIONS (Quadratic Formula)

  • Set the equation to be equal to zero

    • Move everything to one side

    • Combine Like Terms

  • Plug a, b, and c into the formula

    • Solve


I DO (Quadratic Formula)

Find all zeros using the quadratic formula

  • 1.

  • 2.

  • 3.

  • 4.


WE DO (Quadratic Formula)

Find all zeros using the quadratic formula

  • 1.

  • 2.

  • 3.

  • 4.


YOU DO (Quadratic Formula)

Find all zeros using the quadratic formula

  • 1.

  • 2.

  • 3.

  • 4.


REVIEW

  • Today you learned how to solve a quadratic equation using the quadratic formula


HOMEWORK

  • Worksheet

    • 5.6B (13-24)


Warm Up

  • Silvery fish Asuch as sardines and Atlantic herring Bbeing masters of camouflage, using Ctheirsilvery skin to stay invisible to predators Dfrom nearly every angle. ENoerror

    (A)(B)(C)  (D)(E)  


Algebra 3

Chapter 5

Lesson 6: Quadratic Formula and the Discriminant


DIRECTIONS (Discriminant)

  • Set the equation to be equal to zero

    • Move everything to one side

    • Combine Like Terms

  • Plug a, b, and c into the formula

    • Solve


I DO (Discriminant)

Find the discriminant and determine how many REAL solutions

  • 1.

  • 2.

  • 3.

  • 4.


WE DO (Discriminant)

Find the discriminant and determine how many REAL solutions

  • 1.

  • 2.

  • 3.

  • 4.


YOU DO (Discriminant)

Find the discriminant and determine how many REAL solutions

  • 1.

  • 2.

  • 3. 3

  • 4.


REVIEW

  • What did you learn today?


HOMEWORK

  • Worksheet

    • 5.6B (1-12)


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