Chapter 2 Vocabulary

Question 1

U-shaped curve when a quadratic function is graphed

Answer 1

Parabola

Question 2

A vertical line through the vertex of the function’s graph

Answer 2

Axis of symmetry

Question 3

The highest and lowest points of a parabola

Answer 3

Vertex

Question 4

When a parabola opens upward, is the y-value at it’s minimum or maximum value?

Answer 4

Minimum

Question 5

When a parabola opens downwards, is the y-value at its minimum or maximum value?

Answer 5

Maximum

Question 6

If the value of a>0, does the parabola open upwards or downwards?

Answer 6

Upwards (a=positive=like a smile)

Question 7

What property states that if two quantities multiply to zero, then at least one is zero?

Answer 7

Zero Product Property

Question 8

The ____ of an equation are the values of the variable that make the equation true.

Answer 8

Roots

Question 9

The Zeros of a function are the _____ intercepts (x or y?)

Answer 9

X intercepts

Question 10

Which form (vertex or standard) helps identify other properties such as the y-intercept and is written:
f(x)= ax^2 + bx + c, where a does not equal 0

Answer 10

standard

Question 11

Which form (vertex or standards) helps identify transformations and is written:
f(x)= a (x-h)^2 + k

Answer 11

vertex

Question 12

If a<0, does the parabola face upwards or downwards?

Answer 12

downwards (negative=sad=frown)

Question 13

True or false: a quadratic always contains a square

Answer 13

True (“quad” means square)

Question 14

True or false: There is always a squared variable in a quadratic function?

Answer 14

True

Question 15

If the parabola x-intercepts are -5 and 6, what are the zeros?

Answer 15

-5 and 6 (zeros are the same as the x-intercepts)

Question 16

The solutions to a quadratic equation are called what?

Answer 16

roots

Question 17

If two binomial factors are identical, the original expression is called what?

Answer 17

A perfect square trinomial

Question 18

The x-intercepts of a parabola are also called ____?

Answer 18

Zeros

Question 19

True or false: A zero of a function is the x-intercept of the graph

Answer 19

True

Question 20

The square root of a negative number is called a ____number.

Answer 20

Imaginary

Question 21

The value of the input x that makes the output f(x) equal zero is called the ______.

Answer 21

Zero of a function

Question 22

a ____equation is one whose graph is a line

Answer 22

Linear

Question 23

a _____function always contains a square

Answer 23

quadratic

Question 24

When a parabola opens upwards, is the y-value of the vertex the MINIMUM or MAXIMUM value of a quadratic function?

Answer 24

minimum

Question 25

The _____ is the point at which the parabola intersects the axis of symmetry

Answer 25

vertex

Question 26

True or false: The discriminant tells you how many roots there are in a quadratic function

Answer 26

true