Review: Functions, Slope/Rate of Change, Unit Rate

Is the relation a function? Why.

• Yes, because the x-value 11 has two y-values pair with it.
• Yes, because each x-value has only one y-value paired with it.
• No, because the x-value 11 has two y-values pair with it.
• No, because each x-value has only one y-value paired with it.

Is this table a function or not a function? 

• Function
• Not a Function

Paco's daughter will be participating in an upcoming dance recital. She will require a different costume for each dance she plans to performs.
c = the number of costumes Paco's daughter will require
d = the number of dances Paco's daughter plans to perform
Which of the variables is independent?

• c
• d

Tags

CCSS.6.EE.C.9

Sarah is bringing treats to her middle school class on her birthday. The number of treats she brings in is based on the number of students in her class.
t = the number of treats
s = the number of students
Which of the variables is dependent?

• s
• t

• Yes
• No

Is this is a function or not a function?

• Function
• Not a Function

Which set of ordered pairs is a function?

• {(9,5), (10,5), (9,-5), (10,-5)}

• {(3,4), (4,-3), (7,4), (3, 8)}

• {(6,-5), (7, -3), (8, -1), (9, 1)}

• {(2, -2), (5, 9), (5, -7), (1, 4)}

• A
• B
• C
• D

Why does this graph show a non-proportional relationship?

• Because it is proportional
• It goes through the origin
• It does not go through the origin
• It is a straight line

Tags

CCSS.7.RP.A.2D

Which graph is proportional?

• A
• B
• C and D
• All of the graphs are proportional

Tags

CCSS.7.RP.A.2D