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Vocabulary
Misc.
x-intercepts
Axis of Symmetry
Factoring
100
What is the name for a U-shaped graph in the quadratic equation?
Parabola
100

What does it mean to put an equation in standard form?

Put the terms in order - from the largest exponent to the smallest.

100
Name the x-intercepts (Give points where the parabola is crossing the x-axis) y=(x-2)(x+6)
(2,0) and (-6,0)?
100
What is the formula for the axis of symmetry?
x=-b/2a
100

Use factoring to solve the quadratic. m^2 + 3m - 40 =0

x=5 x=-8

200
How do we call the highest or lowest point on a parabola.
Vertex
200
What is the y-intercept?
Point where the parabola crosses through the y-axis.
200

If  a quadratic function has an x-intercept at -2 and an x-intercept at 5, how many solutions are there to the function?

Two solutions

200
What does the axis of symmetry do?
Axis of symmetry cuts the quadratic equation in half.
200

If the zeroes of a function are -2 and 4, what are the factors for the function?

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

300
What is the name of the form for this quadratic equation? y = ax^2 +bx + c
Standard form
300

What are two other names for the zeroes of a parabola?

The roots or the solutions
300
Name the x-intercepts. Give points where the parabola is crossing the x-axis. y=x^2 - 4
(-2,0) and (2,0)
300
What is the axis of symmetry for this quadratic function? y=x^2 + 4x + 4
x=-2
300

Use the factoring or quadratic formula to solve the quadratic. 


x2 - 4x - 12 = 0

x = 6, x = -2

400
When the vertex is in the lowest part of the parabola, what is it called?
The minimum
400

What can the coefficient of an "a" term tell you about the behavior of the parabola? ax^2 +bx + c

If it is positive, the graph is U-shaped (think like a happy face, like we saw in class!)


If it is negative, the graph is n-shaped (like a frowning face).

400

Name the x-intercepts. Give points where the parabola is crossing the x-axis. Y=(x)(x-2)

(0,0) and (2,0)

400
What is the axis of symmetry for this quadratic function? y=x^2 -6x +9
x=3
400

Use factoring to solve. 

4a^2 +16a -20 =0

(4a + 20) (a - 1) = 0

a = -5      a = 1

500
How do we call the line that runs through the vertex and divides the parabola in half.
Axis of symmetry
500

What is another name for the vertex of the parabola?


(Hint: Think about what is happening when the graph reaches the vertex!)

The turning point

500

Name the x-intercepts. Use factoring, graphing or quadratic formula to find the points where the parabola crosses through the x-axis. y=x^2 - x - 2

(-1,0) and (2,0)

500
What is the axis of symmetry for this quadratic function? x^2 + 1 = 2x
x = 1
500

What are the factors of the quadratic below?

x2 + 14x + 48 = 0

(x + 6)(x + 8) = 0


x = -6 and x = -8 are the roots/solutions/zeroes of the function. They are not the same as the factors.