Description
This will include functions and graphing. Compositions and transformations. Measurements involved. This will not be so challenging.
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Explanation & Answer
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1.
Which of the following relations are functions? (2 points)
i.
ii.
iii.
y = -x + 3
x=y+3
x-y=3
None of them
All of them
Choice II only
Choice III only
2.
Find the range for f(x) = -x2 + 1, for x > 0. (2 points)
y>1
y≥1
y 0? (2 points)
For x > -4 or x < 6
For x < -4 or x > 6
For no x values
For all x values
7.
For which x value would the graph of y = x4 - 25 be below the x-axis? (2 points)
1
3
4
5
8.
Find f(g(-3)) if
18
32
1
and g(x) = (x - 1)2 . (2 points)
9.
Find f[g(x)] if f(x) = x2 + 1 and g(x) = x3. (2 points)
x6 + 1
x8 + 1
(x2 + 1)3
None of these
10.
Find g(x) if g(x) is the resulting function from moving f(x) = (x + 1) right 2 units and up 5
units. (2 points)
g(x) = (x + 6) + 2
g(x) = (x - 1) + 2
g(x) = (x + 3) + 5
g(x) = (x - 1) + 5
11.
Rewrite f(x) = sin(x) if the fu...