Chapter 3 Functions and Relations Review

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

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.A.1

Write the equation for the table given

• y = 1/3x
• y = 3x
• y = -1/3x
• y = -3x

Tags

CCSS.6.EE.C.9

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

• 4
• 3
• 7
• 10

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.A.1

What is the function of the table?

• y=x*2
• y=x+2
• y=x/2
• y=x-2

Tags

CCSS.8.F.B.4

CCSS.HSF.LE.A.2

What is the function of the table?

• y=x*6
• y=x+10
• y=x-10
• y=x÷6

Tags

CCSS.8.F.B.4

CCSS.HSF.LE.A.2

y=x-6
What is the missing number?

• 12
• 10
• 14
• 13

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.A.1

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

Tags

CCSS.6.EE.C.9

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

Tags

CCSS.6.EE.C.9

Pablo has $12. He earns $7 for every lawn he mows. Write an equation to find the amount of money "y" he will have after "x" number of lawns.

• y = 12x + 7
• y = 7x + 12

Tags

CCSS.6.EE.C.9

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.

Tags

CCSS.8.F.A.1