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VOCABULARY
AXIS OF SYMMETRY
VERTEX
SOLVE QUADRATICS
GRAPHS
100
The u-shaped graph shown by a quadratic.
What is a PARABOLA?
100
This is the formula for the axis of symmetry.
What is x = -b/2a ?
100

The vertex of y = (x - 4)2 + 1 is this ordered pair.

What is (4, 1)?

100

The roots of (x+3)(x-7)=0 are these numbers.

What are -3 and 7?

100

A parabola with equation below

h(t) = 5t2 + 8t - 2  Give the y-intercept

(0,-2)

200
The line that passes through the vertex and divides a parabola into two symmetric parts.
What is the AXIS OF SYMMETRY?
200

This is the axis of symmetry for the equation 

y = 2x2 + 8x – 5.

What is x = -2?

200

y = 4x2 + 7 has its vertex at this point

What is (0,7)?

200

These are the solutions to the equation x2 - 25 = 0.

What are -5 and 5?

200

h(t) = - 16t2 + 32t - 10

Given the above equation explain the features of the graph. Give at least 2 details

Opens down

Has maximum

-10 is y-intercept

300
The lowest or highest point on a parabola.
What is the VERTEX?
300

This is the axis of symmetry for

 y=3x2+6x-2

What is x = -1?

300

The vertex of y = (x + 1)2 + 2 is this ordered pair.

What is (-1,2)?

300

Solve: x2 + 8x + 16 = 0.

What is -4?

300

H(x) = -8x2 + 5x +20 

What is the initial height of the object?

What is 20?

400
These are three names for the place or places a parabola crosses the x-axis.
What are x-intercepts, roots and zeros?
400

This is the axis of symmetry for

 y = -4x2 + 3.

What is x= 0?

400

This point is the vertex of y = -3x2 + 18x - 13.

What is (3,14)?

400

The zeros of x(x+1)(x-5)= 0 are these.

What are 0, -1, 5?

400

y= 5x2 + 2x - 1 

Open Up or Down

What is Up

500
The 3 forms of equations that a quadratic can be written in

standard, vertex, factored

500

This is the axis of symmetry for 

y = -2x2 + 8x + 12.

What is x = 2?

500

The vertex of y = -4x2  + 4x - 2 is a minimum or a maximum

What is maximum

500

Solve: x2 + 4x = 0 using the quadratic formula

x=0

x=-4

500

True or False

A quadratic graph can have NO zeroes. Explain for points

True