WorksheetsUnit 4 Part 1 Revision Pre Assessment
Total questions: 28
Worksheet time: 31mins
Name
Class
Date
1.
Is this mapping a function or not a function?
a)
Function
b)
Not a Function
2.
Is this graph a function or not a function?
a)
Function
b)
Not a Function
3.
Is this mapping a function or not a function?
a)
Function
b)
Not a Function
4.
Which graph does NOT pass the vertical line test?
a)
Graph 1
b)
Graph 2
c)
Graph 3
d)
Graph 4
5.
a)
Function
b)
Not a Function
6.
Evaluate f(-2) if f(x) = x2+ 3
a)
-1
b)
1
c)
7
d)
-7
7.
If f(x) = -4x - 5 and
g(x) = 3 - x,
what is g(-4) + f(1)?
g(x) = 3 - x,
what is g(-4) + f(1)?
a)
7
b)
-2
c)
-9
d)
-10
8.
If h(x) = -5x + 7,
Evaluate 6h(2).
Evaluate 6h(2).
a)
-2
b)
3
c)
-18
d)
-3
9.
Using the graph, what does f(8) equal?
a)
8
b)
2
c)
1
d)
0
10.
What are all the x-intercepts?
a)
(-2.55, 0), (2.55, 0)
b)
(-3,0), (-2,0), (2,0), (3,0)
c)
(0, 36)
d)
(-∞,∞)
11.
For the function {(0,1), (1,-3), (2,-4), (-4,1)}, write the domain and range.
a)
D: {1, -3, -4,}
R: {0, 1, 2, -4}
R: {0, 1, 2, -4}
b)
D: {-4, 0, 1, 2}
R:{-4, -3, 1}
R:{-4, -3, 1}
c)
D: {0, 1, 2, 3, 4}
R:{1, -3, -4}
R:{1, -3, -4}
d)
D: {0, 1, 2, -4}
R: {1, -3, -4, 1}
R: {1, -3, -4, 1}
12.
What is the range of the graph?
a)
-7 ≤ x < 5
b)
-3 ≤ x < 1
c)
-3 ≤ y < 1
d)
-7 ≤ y < 5
13.
What is the range?
a)
x≥0
b)
y≥0
c)
All real numbers
d)
{0, 1, 2, 3, 4,...}
14.
What is the Domain?
a)
-3 < x ≤ 3
b)
-4 ≤ x < 5
c)
-4 ≤ y ≤ 5
d)
-3 < y ≤ 3
15.
Write the inequality in interval notation.
a)
[-4, -1)
b)
(-4, -1)
c)
(-4, -1]
d)
[-4, -1]
16.
Write the following in interval notation
-7 ≤ x < 8
a)
(-7, 8)
b)
[-7, 8)
c)
[-7, 8]
d)
(-7, 8]
17.
Look at the graph. Write the interval notation for the graph.
a)
(-2,5)
b)
(-∞,-2)⋃(5,∞)
c)
[-2,5]
d)
(-∞,-2]∪[5,∞)
18.
What interval notation does the number line graph represent?
a)
[∞, -5)
b)
(∞, -5)
c)
[-5, ∞)
d)
(-5, ∞)
19.
If f(x) = 3x-1 and g(x) = x2+2,
what is (f ° g)(x) ?
a)
3x2 +5
b)
x2 +1
c)
3x2 +1
d)
3x2 +6
20.
If f(x) = 5x and g(x) = 2x-1,
what is the composition f(g(x)) ?
a)
10x-1
b)
10x-5
c)
5x2-1
d)
5x2-5
21.
a)
9
b)
3
c)
5
d)
√15
22.
Find f and g so that h(x) = f(g(x)).
a)
b)
c)
d)
23.
What is the inverse of the points
(1,3)(2,4)(6,8)
(1,3)(2,4)(6,8)
a)
(3,1)(4,2)(8,6)
b)
(-3,-1)(-4,-2)(-8,-6)
c)
(1,3)(2,4)(6,8)
d)
(-1,-3)(-2,-4)(-6,-8)
24.
Find the inverse of f(x) = -4x - 12
a)
f-1(x) = 4x - 3
b)
f-1(x) = -1/4x - 3
c)
f-1(x) = 1/4x + 3
d)
f-1(x) = -4x - 3
25.
In an inverse function, the _____ and _______ are switched from the original
a)
f(x) and g(x)
b)
input and output
c)
positives and negatives
d)
slope and intercept
26.
The inverse has been reflected over which line?
a)
y = x
b)
x = 0
c)
y = 0
d)
x = -y
27.
Find the inverse of y = x2 + 1
a)
x = y2 - 1
b)
x = y2 + 1
c)
y = √(x+1)
d)
y = √(x-1)
28.
Find the inverse of y = √(2x - 5)
a)
(x2 + 5)/2
b)
(x2 - 5)/2
c)
(√x + 5) / 2
d)
(√x - 5) / 2
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