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 3Chapter 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 Ctheir silvery skin to stay invisible to predators Dfrom nearly every angle. ENo error

(A) (B) (C)   (D) (E)  

ALGEBRA 3Chapter 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)