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WorksheetsFunctions Review
Total questions: 25
Worksheet time: 2hrs 58mins
Let f(x) = x + 3. Evaluate f(-2).
-1
1
5
-5
Let f(x) = -4x - 5 and g(x) = 3 - x. Evaluate g(-4) + f(1).
7
-2
-9
-10
Let f(x) = x2 + 3. Evaluate f(-2).
-1
1
7
-7
Let f(x) = 2x2 + 5x - 17. Evaluate f(-1).
-20
-24
12
16
Let h(x) = -x2 + 3x. Evaluate h(5).
40
-10
30
-15
Does the mapping describe a function? Explain
Yes, because the input 11 has two outputs.
Yes, because each input has only one output.
No, because the input 11 has two outputs.
No, because each input has only one output.
What is the domain of the graph?
1 ≤ x ≤ 4
1 < x < 4
1 ≤ y ≤ 4
1 < y < 4
What is the range of the graph?
1 ≤ x ≤ 5
1 < x < 5
1 ≤ y ≤ 5
1 < y < 5
Does the graph describe a function? Explain.
Yes; it passes the horizontal line test.
No; it is not a straight line.
Yes; it passes the vertical line test.
No; the line has endpoints.
Let w(x) = 3x - 7. If w(x) = 14, find x.
7
35
7/3
-4
What is x if f(x) = -2?
4
0
3
8
What is f(1)?
1
5
0
4
What does c(7) represent?
f(____) = 214
j(x) = (x - 8)2, for j(15)
49
7
-7
-49
using y = 4x + 7, what is the range if the domain is {-1, 0, 2}
{3, 7, 15}
{-1, 7, 11}
{-1, 0, 2}
{-1, 11, 15}
Using 4y - 3x = 6, what is the range if the domain is {-2, 0, 2}
{-2, 0, 2}
{0, 3/2, 3}
{0, 3, 2}
{4, -3, 6}
Using 2x + 5y = 1, what is the range if the domain is {-2, 0, 2}
{-2, 0, 2}
{0, 3/2, 3}
{1, 1/5, -1}
{-3/5, -1/5, 3}
f(x) = -2?
What is f(-8)?
8
0
6
-2
Find x if k(x)=8
6
5
none
0
