VOCABULARY
AXIS OF SYMMETRY
VERTEX
SOLVE QUADRATICS BY FACTORING
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 = 2x^2 + 16x - 1 is this ordered pair.
What is (-4,-33)?
100
The roots of f(x)= x^2 - 4x - 21 are these numbers.
What are -3 and 7?
100
A parabola will look like this if a is negative.
What is open downwards with the vertex as a maximum?
200

The line that passes through the vertex and divides a parabola into two symmetric parts.

axis of symmetry or line of symmetry

200
This is the axis of symmetry for the equation y = 2x^2 + 8x – 5.
What is x = -2?
200
y = 4x^2 + 7 has its vertex at this point
What is (0,7)?
200
These are the solutions to the equation x^2 - 25 = 0.
What are -5 and 5?
200

Identify the vertex of the following graph.

Free 200 points

300

The lowest or highest point on a parabola.

vertex or maximum/minimum

300
This is the axis of symmetry for y=3x^2+6x-2
What is x = -1?
300
The vertex of y = x^2 is this ordered pair.
What is (0,0)?
300

Solve: x^2 + 8x + 16 = 0.

free points

300

Identify the axis of symmetry of the following graph.

Free points

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 = -4x^2 + 3.
What is 0?
400
This point is the vertex of y = -3x^2 + 18x - 13.
What is (3,14)?
400
The zeros of 2x^2 + 4x - 6 = 0 are these.
What are 1 and -3?
400
Determine the roots of the following graph.
What are -2 and 1?
500
This is the standard form of a quadratic equation.
What is ax^2 + bx + c = 0 ?
500
This is the axis of symmetry for y = -2x^2 + 8x + 12.
What is x = 2?
500
The vertex of y = -4x^2 + 3 is this.
What is (0,3)?
500
Solve: x^2 + 4x = 0
What are -4 and 0?
500
FINAL JEOPARDY: Determine the roots by graphing: y = 2x^2 - 12x + 16
What are 2 and 4?
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