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Online Quiz (Worksheet A B C D)

Questions Per Quiz = 2 4 6 8 10


Functions and Equations

  1. A function is a relation.
  2. It relates each of its inputs to exactly one output.
  3. f(x) = (2*x - 2) is an example for a function.
Example: f(x) = x + 2 is a function. What is the value of the function for x = 7
Substitute 7 for x
f(5) = 7 + 2 = 9
Answer: 9

Example: f(x) = (5*x +2) is a function. What is the value of the function for x = 5
Substitute 5 for x
f(5) = (5 * 5 + 2)
Answer: 27

Directions: Answer the following questions. Also write at least 5 examples of your own.
Q 1: Which of the following are NOT inverse operations?
Addition and Subtraction
Multiplication and Addition
Multiplication and Division
Squares and Square Roots

 Q 2: f(x) = x/3 is a function. What is the value of the function for x=12
12
36
4
3

Q 3: y = 6-x is an equation. What is the value of y for x=1?
1
5
6
7

 Q 4: f(x) = x + 5 is a function. What is the value of the function for x=7
12
5
Unknown
7

Q 5: y = x + 2 is an equation. What is the value of y for x=3?
5
3
2
Cannot be solved

 Q 6: y = (2*x + 1) is an equation. What is the value of y for x=1?
Unknown
2
1
3

Q 7: A function does the same thing to each number you plug into it.
False
True

 Q 8: f(x) = x * 2 is a function. What is the value of the function for x=3
3
2
6
Unknown

Question 9: This question is available to subscribers only!

 Question 10: This question is available to subscribers only!


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