AnswersWSFCS Math 2 CRUnit Test

Unit Test — Unit test Answers

27 verified answers
21
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Which statement is true about the function f(x) = ?

Question illustration
A
It has the same domain as the function f(x) = .
Option A
B
It has the same range as the function f(x) = .
Option B
C
It has the same domain as the function f(x) = .
Option C
D
It has the same range as the function f(x) = .
Option D
22
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Which describes all possible values of f(x) in the function f(x) = ?

Question illustration
a
all real numbers
a
all real numbers except for 0
a
all positive real numbers and 0
a
all negative real numbers and 0
23

Using the quadratic formula to solve 11x2 – 4x = 1, what are the values of x?

A
StartFraction 2 Over 11 EndFraction plus-or-minus StartFraction StartRoot 15 EndRoot Over 11 EndFraction
Option A
B
StartFraction 2 Over 11 EndFraction plus-or-minus StartFraction 2 StartRoot 15 EndRoot Over 11 EndFraction
Option B
C
StartFraction 2 Over 11 EndFraction plus-or-minus StartFraction StartRoot 7 EndRoot Over 11 EndFraction
Option C
D
StartFraction 2 Over 11 EndFraction plus-or-minus StartFraction StartRoot 7 EndRoot i Over 11 EndFraction
Option D
24

For what values of m does the graph of y = mx2 – 5x – 2 have no x-intercepts?

Question illustration
A
Option
Option A
B
Option
Option B
C
Option
Option C
D
Option
Option D
25

The function f(x)= – is shown on the graph.

Question illustration
A
The range of the graph is all real numbers greater than or equal to 0.
B
The domain of the graph is all real numbers greater than or equal to 0.
C
The range and domain of the graph are the same.
D
The domain of the graph is all real numbers.
26

What is the value of i 97 – i?

Question illustration
–
–i
0
0
–
–2i
D
Option
Option D
27

If the discriminant of a quadratic equation is 4, which statement describes the roots?

T
There are two complex roots.
T
There are two real roots.
T
There is one real root.
T
There is one complex root.
28

What is the greatest possible integer value of x for which is an imaginary number?

Question illustration
3
3
4
4
5
5
6
6
29

Which is the graph of the function f(x) = ?

Question illustration
A
Option
Option A
B
Option
Option B
C
Option
Option C
D
Option
Option D
30

During a baseball game, a player hits a ball while a bird is flying across the field. Let t be the time in seconds since the ball is hit and h be the height in feet. The height of the baseball over time is modeled by the equation h = –16t2 + 65t and the height of a bird over time is modeled by the equation h = 8t + 20. What do the intersection points of the equations represent?

t
the height of the bird and the ball when the ball and the bird are the same distance from the player
t
the height of the bird and the ball when the player hits the ball
t
the time when the height of the ball and the bird are the same
t
the time when the ball and the bird hit the ground
31

Which equation is a radical equation?

Question illustration
3
3d =
Option 3
+
+ 2n = + n
Option +
+
+ h = 5 + 2h
Option +
+
+ d2 =
Option +
32

Which is the graph of the function f(x) =

Question illustration
A
Option
B
Option
C
Option
D
Option

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