Representing Function Relationships

According to the graph, what is the cost for 4 shirts?

• about $4

• about $12

• about $36

• about $56

Tags

CCSS.HSF.IF.B.4

According to the graph, what is the cost for 4 pounds of bananas?

• 20 cents

• 60 cents

• 100 cents

• 150 cents

Tags

CCSS.HSF.LE.B.5

Maria makes $15 an hour babysitting.  What equation can be used to represent the amount of money she makes per hour?

• y = x + 15

• y = 15x

• y = 15/x

• y = 15 - x

Tags

CCSS.8.F.B.4

CCSS.HSF.LE.A.2

Is this a function? 

• Yes, because every input has exactly one output

• No, because -1 has more than one output 

• No, because 3 is in the input and the output 

Tags

CCSS.8.F.A.1

What is a rule that assigns exactly one output to ever input? 

• mapping diagram

• table 

• function

• function notation 

Tags

CCSS.8.F.A.1

Is this a function? 

• Yes, because 15 is assigned the output value of 7 and 9

• No, because 15 has more than one output 

• No, because -1, 0, and 15 have the same output value of 9 

Tags

CCSS.8.F.A.1

Is the table on the left a function? 

• Yes, because every input has exactly one output

• No, because 1 and 3 have the same output value 

Tags

CCSS.8.F.A.1

Is the table on the right a function? 

• No, because not every input has exactly one outout

• Yes, because every input has exactly one output 

• No, because 4 has more than one output 

Tags

CCSS.8.F.A.1

Evaluate the function rule: 
 y = 5 x - 2    for x = 3 

• y = 13 

• y = 12 

• y = 11.5 

• y = 17 

Tags

CCSS.HSF.IF.A.2

Evaluate the function rule: 
y = 6(x - 6)  for x = 7 

• y = 36 

• y = 6 

• y = 1 

• y = 7 

Tags

CCSS.HSF.IF.A.2