Unit 2: Functions Review

Multiple Choice

Which of the following is a function?

Multiple Choice

Which intervals are constant?

• 1 and 5

• 2 and 3

• 4 and 6

Multiple Choice

How many increasing intervals are there?

• 2

• 3

• 4

• 5

Multiple Choice

How many descreasing intervals are there?

• 2

• 3

• 4

• 5

Multiple Choice

Which graph does NOT pass the vertical line test?

• Graph 1
• Graph 2
• Graph 3
• Graph 4

Multiple Choice

• {1, 2, 3, 4, 5}
• {-1, 1, 2, 3}
• {1, 2, 3, 5}
• {1, 5}

Multiple Choice

• {-7, -5, 2, 3, 7}
• {-7, 7}
• {1, 2, 3, 4, 5}
• {1, 5}

Multiple Choice

Find the range of the function y=3-x when the domain is {-2, 0, 3}

• {-6, -5, -3}
• {-1, 0, 6}
• {0, 3, 5}

Multiple Choice

Find the range of the function y=7x-1 when the domain is {-1, 0, 1}

• {1, 6, 8}
• {-8, -1, 6}
• {-8, -6, 0}

Multiple Choice

• A
• B
• C
• D

Multiple Choice

Is this a function?

• Yes

• No

Multiple Choice

Is this a function?

• Yes

• No

Multiple Choice

Is this a function?

• Yes

• No

Multiple Choice

Is this a function?

• Yes

• No

Multiple Choice

Is this a function?

• Yes

• No

Multiple Choice

What is the RANGE of this graph?

• -7<x<5

• -7≤y<5

• -3<x<1

• -3≤y<1

Multiple Choice

What is the DOMAIN of this graph?

• -4 ≤ x ≤ 3

• -1 ≤ x ≤ 4

• 4 < x < 3

• -1 < x < 4

Multiple Choice

Which of the inequalities below best describes the domain of the function shown on the graph?

• -2 ≤ x ≤ 2
• -5 ≤ x ≤ -3
• -2 ≤ x ≤ 3
• -5 ≤ x ≤ 3

Multiple Choice

What is the domain of the graph?

• {-4, 0, 2, 4}
• {-5, -4, -3, -1}
• {-5, -4, -3, -1, 0, 2, 4}
• All real numbers

Multiple Choice

What is the RANGE?

• 0 ≤ x < 3

• 0 < y ≤ 3

• -2 ≤ y < 1

• -2 ≤ y ≤ 1

Multiple Choice

What is the domain?

• {-4, -1, 0, 2, 7}
• {-5, -4, -1, 0, 1, 2, 4, 7}
• {-5, 0, 1, 2, 4}
• {5}

Multiple Choice

What is the range?

• {-4, -1, 0, 2, 7}
• {-5, -4, -1, 0, 1, 2, 4, 7}
• {-5, 0, 1, 2, 4}
• {5}

Multiple Choice

What is the domain of the relation represented by the graph shown?

• {-2,0,2,4,6}

• {-7,-4,-2,-1,0,2,4,5,6}

• {-7,-4,-1,4,5}

• {-2,-1,0,2,5}

Multiple Choice

What is the range of the relation represented by the graph shown?

• {1, 2, 3, 4}

• {3, 4, 5}

• $$1\le x\le4$$  

• $$3\le y\le5$$  

Multiple Choice

Which is the set of all y-values or the outputs?

• Domain

• Range

• Relation

• Function

Multiple Choice

• Opt1
• Opt2
• Opt 3
• Opt 4

Multiple Choice

Is the following a function?

• Yes, this is a function.

• No, it's not a function.

• Can't be determined with this information.

Multiple Choice

Which of the following is a function?

• A

• B

• C

• D

Multiple Choice

Is the following graph a function?

• Yes, because the x never repeats.

• Yes, because they are individual dots.

• No, because the x repeats.

• No, because it is not a line.

Multiple Choice

Which is a function?

• W

• X

• Y

• Z

Multiple Choice

Which of the following is NOT a function?

Multiple Choice

Which is a function?

• A

• B

• C

• D

Multiple Choice

The following is not a function because...

• There are two values that equal 2.

• x = 10 and x = 40 has two values each.

• In the f(x) column, the 5 repeats.

• This table is actually a function.

Multiple Choice

Which of the following is a function?

Multiple Choice

Is the following graph a function?

• Yes it is a function.

• No, it is not a function.

• There is not enough information to answer this question.

Multiple Choice

Over which interval of time is this person returning home?

• 8:00 < x < 9:00
• 9:00 < x < 9:30
• 9:30 < x < 11:00
• 12:00 < x < 13:00

Multiple Choice

List the types of intervals that the graph demonstrates in order.

• decreasing, constant, increasing, constant
• increasing, decreasing, constant
• increasing, constant, increasing, constant
• increasing, constant, decreasing, constant

Multiple Choice

Which statement is true about this function?

• The function is never constant
• The function is always increasing
• The function is never decreasing
• The function increases on the interval 11:00 < x < 15:00

Multiple Choice

The graph shows Timmy's distance he is as he leaves school one afternoon. What happens in section B?

• Timmy is walking back to school because he forgot his math book.

• Timmy is talking to a friend and not walking.

• Timmy is walking faster home.

• Timmy is dancing in the street.

Multiple Choice

Which runner stopped for a rest?

• Albert
• Bob
• Charlie

Multiple Choice

Multiple Choice

Multiple Choice

Multiple Choice

Multiple Choice

Multiple Choice

Multiple Choice

Which situation could this graph represent?

• Johnny started running home but gradually got slower.
• Johnny started jogging home and gradually got faster
• Johnny walked at a constant pace away from home
• Johnny went to the store and then turned around to go home

Multiple Choice

What is happening in this graph from point B to C?

• The object is going down a hill.
• The object is returning to its starting location.
• The object is slowing down.
• The object is staying still.

Multiple Choice

At 60 seconds, how far had this object traveled? 

• 0 m
• 10 m
• 20 m
• 40 m