Expressions, Equations, Functions, & Relations

26 Questions | By Moreheadteacher | Updated: Mar 21, 2022 | Attempts: 1389

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Expressions, Equations, Functions, & Relations - Quiz

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Questions and Answers

1.

The expression "four less than a number" is the same as which of the following?
- A.
  
  4-x
- B.
  
  X-4
2.

Four times the sum of nine and a number
- A.
  
  4(9 + n)
- B.
  
  4 x 9 + n
- C.
  
  4 + n + 9
- D.
  
  4n + 9
3.

Three times Cassie's age increased by nine is twelve.
- A.
  
  3x+12 - 9
- B.
  
  3x + 9=12
- C.
  
  3x + 12 = 9
- D.
  
  3x + 5
4.

Brett got on an elevator and rode up 10 floors. Next he rode down 7 floors. After that he went up 4 floors. Finally he went down 6 floors. When he got off the elevator he was on the 11th floor. What floor was he on when he started his ride?
- A.
  
  8th floor
- B.
  
  9th floor
- C.
  
  10th floor
- D.
  
  12th floor
5.

Sara and Kim together have 15 pencils. Sara has 9 pencils. Mark and Kim together have 10 pencils. How many pencils does Mark have?
- A.
  
  5
- B.
  
  34
- C.
  
  8
- D.
  
  4
6.

What is the algebraic expression for "a number f decreased by 18"?
- A.
  
  18f
- B.
  
  F + 18
- C.
  
  F - 18
- D.
  
  18 + f
7.

The coefficient of x when you have 1.55x is.....
- A.
  
  1.00
- B.
  
  0.55
- C.
  
  1.55
- D.
  
  155
8.

The coefficient of y when you have 22y/9 is.....
- A.
  
  1/9
- B.
  
  22/9
- C.
  
  22
9.

A FUNCTION is a "special" type of ____________.
10.

The PURPOSE of a Function and Relation is to explain how something works and what is happening! It describes what is happening using NUMBERS (that don't change) and VARIABLES (that can change).
- A.
  
  True
- B.
  
  False
11.

Which (variable) do MATH BOOKS often use instead of "f(x)"? This (variable) and f(x) mean the same thing!!!Example: f(x) = x + 6 can also be written as (variable) = x + 6
12.

If you have the Function....Juggling (S) = 3 balls X _____ , where S = # of secondsWhat variable should you put in the blank?!?
13.

Is this true or false?A FUNCTION is a SPECIAL TYPE of RELATION. A RELATION is not always a FUNCTION.
- A.
  
  True
- B.
  
  False
14.

Check ALL the answers that are TRUE!Why did your classmates do weight lifting and Mr.Morehead juggle balls in class?
- A.
  
  So I could learn how to "describe a situation" using numbers and variables
- B.
  
  To help me understand the Purpose of a Function is to explain how something works!
- C.
  
  So I could decide what INPUT, OUTPUT, and VARIABLES to use so my Function is easy to understand
- D.
  
  Because Mr.Morehead used to be in a juggling circus
15.

Steve had x dollars in his bank account and then he deposited $10 each week for 3 weeks. His total amount of money in the bank is now $70. What is x? ( How much money did he have to start?)
- A.
  
  $60
- B.
  
  $20
- C.
  
  $40
16.

What is the difference between an expression and an equation?Pick ONE answer
- A.
  
  They are the same thing.
- B.
  
  An equation has an equal sign, but an expression does not.
- C.
  
  An equation has more numbers and an expression has more variables.
17.

What does 25k mean?
- A.
  
  25 added to k
- B.
  
  The difference between k and 25
- C.
  
  The product of 25 and k
18.

The sum of three and twenty-two, divided by the number a
- A.
  
  (3 + 22) / a
- B.
  
  A / (3 + 22)
- C.
  
  3 + 22 / a
19.

Fill in the blank with the correct word!A _________ is a letter that represents a number(of something).Hint: the answer has 8 letters
20.

Please fill in the answer below...The ____________ of a variable is the number in front of the variable.Hint: the answer has 11 letters
21.

Translate from an English expression into an Algebraic expression:a decreased by 17***answer with NO SPACES*** Example: x+5
22.

Translate from an English expression into an Algebraic expression:the ratio of m and n***answer with NO SPACES*** Example: x+5
23.

Translate from an English expression into an Algebraic expression:8 less than the sum of a and b***answer with NO SPACES*** Example: x+5***HINT...don't forget the ()
24.

Why is a Function so useful when you are trying to understand a situation?Pick only one of the following answers
- A.
  
  A Function gives us an "EXACT" answer for every input!
- B.
  
  A Function describes what is happening using "numbers" that don't change and "variables" for the things that can change.
- C.
  
  Both of the above answers are CORRECT!!!!!!!!!!!!!!!!!!