SECOND TERM QUIZ REVIEW
Authored by KENNETH SIBAL
Mathematics
9th Grade
Used 1+ times
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16 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
1. Which transformation will occur if f(x) = x is replaced by g(x) = x + 9?
translation left 9 units
translation right 9 units
reflection across the x-axis
vertical translation up 9 units
Answer explanation
Translation up k units, k > 0 g(x) = f(x) + k
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What would be the equation of f(x) given that g(x) = x + 8 has a vertical shift of 8?
f(x) = x
f(x) = 8x
f(x) = -8x
f(x) = x + 8
Answer explanation
Translation up k units, k > 0 g(x) = f(x) + k
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Given f(x) = x + 5 and g(x) = 3x + 5. What is true to these equations?
The graph of f is a horizontal stretch of the graph of g by a scale factor of 3 through the y-axis.
The graph of g is a horizontal compression of the graph of f by a scale factor of 3.
The graph of g is a vertical compression of the graph of f by a scale factor of 3.
The graph of f is a vertical stretch of the graph of g.
Answer explanation
Multiplying the input of a linear function f by k scales its graph horizontally.
k > 1, the transformed graph is a horizontal compression.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What happens to the graph of a linear function If you add or subtract a constant from the input?
The function will be stretched.
The function will be compressed.
The function will be shifted vertically.
The function will be shifted horizontally.
Answer explanation
Horizontal Translation:
Translation to the right k units, k > 0 g(x) = f(x – k).
Translation to the left k units, k > 0 g(x) = f(x + k).
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which function is a vertical translation of the linear parent function f(x) = x?
g(x) = 2x
g(x) = -2x
g(x) = x + 14
g(x) = 2x + 14
Answer explanation
Vertical Translations:
Translation up k units, k > 0 g(x) = f(x) + k.
Translation down k units, k > 0
g(x) = f(x) – k.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What would the equation be of f(x) = 4x – 2 if the function was translated to 4 units left?
g(x) = 3x - 4
g(x) = 4x + 3
g(x) = 4(x – 4) – 2
g(x) = 4(x + 4) – 2
Answer explanation
Horizontal Translation:
Translation to the right k units, k > 0 g(x) = f(x – k).
Translation to the left k units, k > 0 g(x) = f(x + k).
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which is true for the graphs of f (black) and g (red)?
vertical translation down 9 units
vertical translation down 9 units
vertical stretch 9 units
vertical compression 9 units
Answer explanation
Vertical Translation:
Translation up k units, k > 0 g(x) = f(x) + k.
Translation down k units, k > 0 g(x) = f(x) – k.
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