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# Warm Up - PowerPoint PPT Presentation

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

• (B) candid in

• (C) chary of

• (E) precipitate in

### Algebra 3

Chapter 5

Lesson 6: Quadratic Formula and the Discriminant

• 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

• 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

Find all zeros using the quadratic formula

• 1.

• 2.

• 3.

• 4.

Find all zeros using the quadratic formula

• 1.

• 2.

• 3.

• 4.

Find all zeros using the quadratic formula

• 1.

• 2.

• 3.

• 4.

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

• Worksheet

• 5.6B (13-24)

• 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

• 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

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.

• What did you learn today?

• Worksheet

• 5.6B (1-12)