AnswersFL-1200330-Algebra 2 AThe Quadratic Formula

The Quadratic Formula Answers

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1
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Choose the equation that represents the solutions of 0 = 0.25x2 - 8x.

A
Option
Option A
B
Option
Option B
C
Option
Option C
D
Option
Option D
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0 = 5x2 - 2x + 6

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Option
Option A
B
Option
Option B
C
Option
Option C
3

4y - 7 = 5x2 - x + 2 + 3y✔ noonetwo real solution(s)

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no
B
one
C
two
4

y = (-x + 4)2no✔ onetwo real solution(s)

A
no
B
one
C
two
5

Which of the statements about the following quadratic equation is true? 6x2 - 8 = 4x2 + 7x

A
The discriminant is greater than zero, so there are two real roots.
B
The discriminant is greater than zero, so there are two complex roots.
C
The discriminant is less than zero, so there are two real roots.
D
The discriminant is less than zero, so there are two complex roots.
6

3x = 0.5x2

A
x = -6 or x = 0
B
x = -4 or x = 3
C
x = -2 or x = 1.5
D
x = 0 or x = 6
7

Question text not available

Answer:

/Explanation: No. The correct values of a, b, and c were substituted in, but the formula was simplified wrong. The 64 should be added so the radicand is 73. There should be 2 real roots.

8

Question text not available

Answer not available
9

y = 12x2 - 9x + 4✔ noonetwo real solution(s)

A
no
B
one
C
two
10

Complete the statements.Graph A✔ BC has one real root.

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A
B
B
C
C
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A✔ BCD

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A
B
B
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C
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D
12

Which of the following did you include in your response? Check all of the boxes that apply.

A
The formula was not simplified correctly.
B
The 64 should have been added.
C
The radicand should be 73.
D
There should be 2 real roots.
13

10x + y = -x2 + 2 noone✔ two real solution(s)

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no
B
one
C
two
14

Graph ✔ ABC has a negative discriminant.

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A
B
B
C
C
15

ABC✔ D

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A
B
B
C
C
D
D
16

Graph AB✔ C has an equation with coefficientsa = 1, b = 4, c = -2

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A
B
B
C
C
17

✔ ABCD

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A
B
B
C
C
D
D
18

AB✔ CD

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A
B
B
C
C
D
D

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