AnswersApplications and ModelingThe Quadratic Formula

The Quadratic Formula Answers

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1
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Solve equation by using the quadratic formula. a. c. b. d. Please select the best answer from the choices provided

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A
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B
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D
2
Free Preview

Sketch the graph of using your graphing calculator. What are the x-intercepts of this graph?

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A
(-5, 0) and (3, 0)
B
(2, 0) and (-2, 0)
C
There are no x-intercepts
D
(9, 0) and (-2, 0)
3

Solve equation by using the quadratic formula. a. c. b. d. Please select the best answer from the choices provided

Question illustration
A
A
B
B
C
C
D
D
4

Solve equation by using the quadratic formula. a. c. b. d. Please select the best answer from the choices provided

Question illustration
A
A
B
B
C
C
D
D
5

Sketch the graph of using your graphing calculator. What are the x-intercepts of this graph?

Question illustration
A
(1, 0) and (-0.5, 0)
B
(0, 0) and (-3.5, 0)
C
There are no x-intercepts
D
(-1.5, 0) and (-0.5, 0)
6

Sketch the graph of using your graphing calculator. What are the x-intercepts of this graph? a. 7 b. c. d. 7 Please select the best answer from the choices provided

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A
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B
C
C
D
D
7

Sketch the graph of using your graphing calculator. What are the x-intercepts of this graph?

Question illustration
A
(-5, 0) and (3.5, 0)
B
(-2.5, 0) and (-2, 0)
C
There are no y-intercepts
D
(-0.5, 0) and (-7.5, 0)
8

Solve equation by using the quadratic formula. a. c. b. d. Please select the best answer from the choices provided

Question illustration
A
A
B
B
C
C
D
D
9

Solve equation by using the quadratic formula. a. c. b. d. Please select the best answer from the choices provided

Question illustration
A
A
B
B
C
C
D
D
10

Solve the equation by using the quadratic formula. a. b. c. d. Please select the best answer from the choices provided

Question illustration
A
A
B
B
C
C
D
D
11

Solve equation by using the quadratic formula. a. c. b. d. Please select the best answer from the choices provided

Question illustration
A
A
B
B
C
C
D
D
12

When solving a quadratic equation, what do the x-values stand for as it relates to plotting the graph of the equation?

A
x-intercepts
B
vertex
C
minimum value
D
axis of symmetry
13

Solve equation by using the quadratic formula. a. c. b. d. Please select the best answer from the choices provided

Question illustration
A
A
B
B
C
C
D
D
14

Solve equation by using the quadratic formula. a. c. b. d. Please select the best answer from the choices provided

Question illustration
A
A
B
B
C
C
D
D
15

When solving by using the Quadratic Formula, what are the steps to follow?

A
factor, find values for a,b,c, subtract
B
simplify, find values for a,b,c, factor
C
substitute into the formula, find values for a,b,c, simplify
D
find values for a,b,c, substitute into the formula, simplify
16

A rocket is launched from atop a 36-foot cliff with an initial velocity of 107 feet per second. The height of the rocket, t seconds after launch is given by the equation . Use the quadratic formula to find out how long after the rocket is launched it will hit the ground (h = 0). Round your answer to the nearest tenth of a second.

Question illustration
A
1.5 sec
B
0.3 sec
C
7.0 sec
D
6.3 sec
17

Solve equation by using the quadratic formula. a. c. b. d. Please select the best answer from the choices provided

Question illustration
A
A
B
B
C
C
D
D
18

Sketch the graph of using your graphing calculator. What are the x-intercepts of this graph?

Question illustration
A
(1, 0) and (-0.5, 0)
B
(-2.5, 0) and (-2, 0)
C
There are no x-intercepts
D
(-1.5, 0) and (-0.5, 0)
19

Solve equation by using the quadratic formula. a. c. b. d. Please select the best answer from the choices provided

Question illustration
A
A
B
B
C
C
D
D
20

Solve equation by using the quadratic formula. a. c. b. d. Please select the best answer from the choices provided

Question illustration
A
A
B
B
C
C
D
D

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