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2-12 Practice
By Patrick Silvey
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Last updated about 3 years ago
42 questions
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Question 1
1.
What is the value of
a
for the equation 3x
2
+ 8x + 4 = 0?
Question 2
2.
What is the value of
b
for the equation 3x
2
+ 8x + 4 = 0?
Question 3
3.
What is the value of
c
for the equation 3x
2
+ 8x + 4 = 0?
Question 4
4.
What is the value of
a
for the equation 2x
2
- 5x + 2 = 0?
Question 5
5.
What is the value of
b
for the equation 2x
2
- 5x + 2 = 0?
Question 6
6.
What is the value of
c
for the equation 2x
2
- 5x + 2 = 0?
Question 7
7.
What is the value of
a
for the equation -9x
2
+ 13x - 1 = 0?
Question 8
8.
What is the value of
b
for the equation -9x
2
+ 13x - 1 = 0?
Question 9
9.
What is the value of
c
for the equation -9x
2
+ 13x - 1 = 0?
Question 10
10.
What is the value of
a
for the equation x
2
+ x - 11 = 0?
Question 11
11.
What is the value of
b
for the equation x
2
+ x - 11 = 0?
Question 12
12.
What is the value of
c
for the equation x
2
+ x - 11 = 0?
Question 13
13.
What is the value of
a
for the equation -x
2
+ 16x + 64 = 0?
Question 14
14.
What is the value of
b
for the equation -x
2
+ 16x + 64 = 0?
Question 15
15.
What is the value of
c
for the equation -x
2
+ 16x + 64 = 0?
Question 16
16.
Question 17
17.
Question 18
18.
Question 19
19.
Us
the Quadratic Formula
to show that the solutions to the equation x
2
- 10x + 21 = 0 are x = 3 and x = 7.
visibility
View drawing
Question 20
20.
Question 21
21.
Question 22
22.
Question 23
23.
What is the maximum height of object A?
Question 24
24.
What is the maximum height of object B?
Question 25
25.
What is the value of
a
for the equation x
2
+ 9x + 18 = 0?
Question 26
26.
What is the value of
b
for the equation x
2
+ 9x + 18 = 0?
Question 27
27.
What is the value of
c
for the equation x
2
+ 9x + 18 = 0?
Question 28
28.
What is the value of
a
for the equation 4x
2
- 3x + 11 = 0?
Question 29
29.
What is the value of
b
for the equation 4x
2
- 3x + 11 = 0?
Question 30
30.
What is the value of
c
for the equation 4x
2
- 3x + 11 = 0?
Question 31
31.
What is the value of
a
for the equation 81 - x + 5x
2
= 0?
Question 32
32.
What is the value of
b
for the equation 81 - x + 5x
2
= 0?
Question 33
33.
What is the value of
c
for the equation 81 - x + 5x
2
= 0?
Question 34
34.
What is the value of
a
for the equation
?
Question 35
35.
What is the value of
b
for the equation
?
Question 36
36.
What is the value of
c
for the equation
?
Question 37
37.
What is the value of
a
for the equation 121 = x
2
?
Question 38
38.
What is the value of
b
for the equation 121 = x
2
?
Question 39
39.
What is the value of
c
for the equation 121 = x
2
?
Question 40
40.
What is the value of
a
for the equation 7x + 14x
2
= 42?
Question 41
41.
What is the value of
b
for the equation 7x + 14x
2
= 42?
Question 42
42.
What is the value of
c
for the equation 7x + 14x
2
= 42?
Which of the following is correctly set up using the quadratic formula?
After simplifying under the radical, which of the following is the correct next step in solving the equation with the quadratic formula?
Which of the following is correctly set up using the quadratic formula?
Which of the following is correctly set up using the quadratic formula?
Select
all
the equations that are equivalent to 81x
2
+ 180x - 200 = 100
A. 81x
2
+ 180x - 100 = 0
B. 81x
2
+ 180x + 100 = 200
C. 81x
2
+ 180x + 100 = 400
D. (9x + 10)
2
= 400
E. (9x + 10)
2
= 0
F. (9x - 10)
2
= 10
G. (9x - 10)
2
= 20
Which object reaches the ground first?
Object A
Object B
Both hit the ground at the same time.
