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Math 12 Pre-Calc LG 1 Practice Quiz #4



Multiple Choice
Identify the choice that best completes the statement or answers the question.
 

 1. 

Compared to the graph of the base function mc001-1.jpg, the graph of the function mc001-2.jpg is translated
A
5 units down
C
5 units up
B
5 units to the right
D
5 units to the left
 

 2. 

Compared to the graph of the base function mc002-1.jpg, the graph of the function mc002-2.jpg is translated
A
9 units down
C
9 units to the right
B
9 units to the left
D
9 units up
 

 3. 

Given the graph of f(x) shown below, what are the coordinates of point A if the transformed graph is represented by mc003-1.jpg?
mc003-2.jpg
A
mc003-3.jpg
C
mc003-5.jpg
B
mc003-4.jpg
D
mc003-6.jpg
 

 4. 

What is the equation of the transformed function, g(x), after the transformations are applied to the graph of the base function mc004-1.jpg, shown in blue, to obtain the graph of g(x), shown in red?
mc004-2.jpg
A
mc004-3.jpg
C
mc004-5.jpg
B
mc004-4.jpg
D
mc004-6.jpg
 

 5. 

The function mc005-1.jpg represents a transformation that can best be described as
A
a reflection in the x-axis
C
a reflection in the y-axis
B
a reflection in the x-axis and the y-axis
D
a reflection in the line y = x
 

 6. 

Which of the graphs shown below represents the base function mc006-1.jpg and the stretched function g(x) = mc006-2.jpgx2?
A
mc006-3.jpg
C
mc006-5.jpg
B
mc006-4.jpg
D
mc006-6.jpg
 

 7. 

What are the coordinates of the invariant point(s) when the function mc007-1.jpg is reflected in the x-axis?
A
(0, –1)
C
(0, 1)
B
(–1, 0) and (1, 0)
D
(1, –1)
 

Short Answer
 

 1. 

For each g(x), describe the transformation(s) from the base function sa001-1.jpg.
a) sa001-2.jpg
b) sa001-3.jpg
c) sa001-4.jpg
 

Problem
 

 1. 

For the base function pr001-1.jpg, a reflection in the y-axis is followed by a reflection in the x-axis.
a) Discuss the effect of each reflection on the base function.
b) Is there a point that you expect to be invariant during these reflections? If so, state its coordinates.
c) Graph each function after the reflections.
d) Use this graph to verify your answer for part b).
e) Make a general statement regarding invariant points after reflections in the x-axis and the y-axis.
 

 2. 

Draw a graph to determine the invariant points of pr002-1.jpg when it is reflected in the
a) x-axis
b) y-axis
 



 
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