Functions Lesson

Does the graph represent a function?

• Function

• Not a function

• I don't have a clue

• Both a function and not a function

Does the graph represent a function?

• Function

• Not a function

• I don't have a clue

• Both a function and not a function

Does the graph represent a function?

• Function

• Not a function

• I don't have a clue

• Both a function and not a function

Bowling costs $4 for shoe rental plus $5 for every game. Which equation shows how much it costs to go bowling for x games?

• y = 4 + 5x
• y = 5 + 4x
• y = 4•5•x
• y = 5x - 4

write an equation given a table of values

• y=25x-45

• y=25x-5

• y=5x-25

• y=-20x+5

Which equation matches the graph?

• y = 60x
• y = 40x
• y = 80x
• y = 20x

Is the relation a function?

• Function
• Not a Function

Does the graph show that the relation of the number of months to the amount saved form a function?

• Yes

• No

• Yes and No

• I don't have a clue

Colleen opened a savings account with $50. She plans to deposit $20 each month into the account. Write the function in the form of y=mx+b.

• y = 50x + 20

• y = 20x + 50

• 50x + 20y = b

• I don't have a clue.

Which equation matches the graph? 

• y = 3x 
• y = x + 3
• y = ⅓x
• y = x - 3