Quadratic Functions

Vertexes

100

The vertex of the parabola for f(x)=a(x-h)²+k

What is (h,k)

200

y=x²+16x+71

What is y=(x+8)²+7

300

The vertex of f(x)=-2x²+2x+3

What is (1/2, 7/2)

400

y=x²-12x+46

y=(x-6)²+10

500

6x²+12x=y=13=0

y=6 (x+1)^2-7

Vocabulary

100

The points at which a parabola intersects the x-axis

What is x-intercept

200

The graph of a quadratic function 

What is a parabola

300

The place where a parabola intersects its axis of symmetry

What is the vertex

400

The lowest point of a parabola

What is minimum value

500

The solution to a quadratic equation

What is roots

True or False

100

2.50 is a solution for 4x+25/x=20

True

200

6.41 and 3.69 are solutions for x²=10x=23

False 

300

2.64 and -1.24 are solutions for x²-2x-4?

False

400

Y=mx+b is the quadratic formula 

False

500

A quadratic function is the form f(x)=ax²+bx+c?

True

Find Values

100

(x+2)(x+10)=0

What is x=(-2,-10)

200

(3g-8)(g+4)=0

What is g=(8/3,-4)

300

(2s+5)(3s-7)=0

What is s=(-5/2, 7/3)

400

(3y+9)(2y+1)=0

What is (-3,1/2)

500

(4d+1)(2d+9)=0

What is (-9/2,-1/4)

Solve W/ Quadratic Formula

100

12n²+12n-24=0

What is n=(1,-2)

200

P²+6p-72=0

What is p=(-12,6)

300

8g⁴-4g-24=0

What is g=(2, -3/2)

400

5x²+ax=-4

(-4/5,-1)

500

k²-31-2k=-6k-3k²-2k

(5/2,-5/2)