Quadratics Mrs. Lazarus

General

100

Is this equation in standard form or factored form? 

y=2x²-6x-8

Standard Form 

200

Is this equation in standard form or factored form? 

y= (x-4)(x+5) 

Factored Form 

300

What is the y-intercept of the following quadratic? 

y=6x²-4x-20

The y-intercept is -20

400

a) If you want to go from standard for to factored form, what do you do? 

b) If You want to go from factored form to standard form, what do you do? 

a) FACTOR

b) EXPAND

500

What is the y-intercept of the following quadratic? 

y=(x-4)(x-10) 

y=x²-13x+40

The y-intercept is 40 

Expanding

100

Expand 

x(x-3)

x²-3x

200

Expand. 

y= (x+2)(x+3)

y= x²+5x+6

300

y=(x-3)(x+7)

y=x²+4x-21

400

Expand

y=(x-5)(x-7)

y= x²-12x+35

500

Expand

y=3(x-1)(x+2)

y=3x²+3x-6

Factoring

100

Factor the following using GCF

3b²+6b

3b(b+2)

200

Factor using the simple method. 

y=x²+3x+2

y=(x+1)(x+2) 

300

Factor the following quadratic relation. 

y=x²+7x+10

y=(x+5)(x+2)

400

Factor the following quadratic. 

y=x²+x-20

y=(x-4)(x+5)

500

Factor the following quadratic. 

y=2x²+4x-48

y=2(x+6)(x-4)

Extending

100

What are the zeros of the following quadratic relation? 

y=(x+2)(x-4)

(-2,0) and (4,0) 

200

What are the zeros of the following quadratic relation? 

y=(x-4)(2x-3)

(4,0) and (3/2, 0) 

300

What is the A.O.S. of the following quadratic relation? 

y=(x+2)(x-4)

x=1

400

What are the zeros of the following quadratic? 

y=x²+3x-28

y=(x+7)(x-4)

The zeros are (-7,0) and (4,0) 

500

What is the vertex of the following equation? 

y=(x+5)(x-1)

A.O.S. is x=2

y=(2+5)(2-1)

y= (7)(1)

y= 7 

The vertex is (2,7)