Tables and Functions

A store receives 7 new movies per week. Write an equation to find the number of movies "y" the store receives after "x" weeks.

• y = 7x

• x = 7y

• x + 7 = y

Jeff earns $10 per hours raking leaves. Write an equation to find the amount of money "y" he earns for "x" number of hours.

• y = 10x

• x = 10y

• y = x + 7

What is the definition of function?

• Has inputs and outputs

• Every input has only ONE output

• Inputs have different outputs every time

• x-values and y-values

Is this table a function and how can you tell?

• Yes it's a function because each input has exactly one output

• No it's not a function because the y value 4 repeated

• No it's not a function because the input 5 has more than one output

Find the missing OUTPUT value.

• 8

• -2

• 2

• -8

Using the rule y=6x

which two numbers complete the table?

• 63, 84

• 48, 72

• 60, 78

• 54, 72

Erasers cost 5 cents each at the school store. The table shows this relationship. Choose the graph which displays the ordered pairs and describes the graph.

• 
• 
• 
• 

• Function

• Not a Function

• Function
• Not a Function

If my function rule is y = x + 3, what is the OUTPUT if the input is 4?

• 4

• 3

• 7

• 10