AnswersHigh School Math 2 AIntroduction to Quadratic Functions

Introduction to Quadratic Functions Answers

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1
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Which is a quadratic function?

A
f(x) = 2x + x + 3
B
f(x) = 0x2 – 4x + 7
C
f(x) = 5x2 – 4x + 5
D
f(x) = 3x3 + 2x + 2
2
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b = [___]

Answer:

-5

3

c = [___]

Answer:

6

4

00.5512.5

A
0
B
0.5
C
5
D
12.5
5

–203✔ 4

A
–2
B
0
C
3
D
4
6

The leading coefficient of the function is [___] .

Answer:

-2

7

Which table represents a quadratic function?

A
[Image: A 2-column table with 5 rows. The first column is ...]
B
[Image: A 2-column table with 5 rows. The first column is ...]
C
[Image: A 2-column table with 5 rows. The first column is ...]
D
[Image: A 2-column table with 5 rows. The first column is ...]
8

Find f(–2) for the function f(x) = 3x2 – 2x + 7.

A
−13
B
−1
C
1
D
23
9

–2–1/21/22

A
–2
B
–1/2
C
1/2
D
2
10

Evaluate the function f(x) = –2x2 – 3x + 5 for the input value –3.

A
−22
B
–4
C
2
D
32
11

Which is the rate of change for the interval between 2 and 6 on the x-axis?

A
–3
B
Option
C
Option
D
3
12

Which graph has a rate of change equal to one-third in the interval between 0 and 3 on the x-axis?

Question illustration
A
[Image: On a coordinate plane, solid circles appear on a s...]
B
[Image: On coordinate plane, a parabola opens up. Solid ci...]
C
[Image: On a coordinate plane, solid circles appear on a s...]
D
[Image: On a coordinate plane, a curved line opens up and ...]
13

a = [___]

Answer:

1

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