Functions Review

y = mx + b

In the equation above, the m stands for Slope or____________.

• Rate of Change
• Initial Value

Tags

CCSS.8.EE.B.6

CCSS.8.F.A.3

y = mx + b

In the equation above, the variable b stands for the y-intercept or the ​__________.

• Rate of Change
• Initial Value

Tags

CCSS.8.EE.B.6

CCSS.8.F.A.3

What is the definition of function?

• Has inputs and outputs
• Every input has exactly ONE output

• Inputs have different outputs every time
• x-values and y-values

Tags

CCSS.8.F.A.1

Is the relationship in the table a function or not a function?

• Function
• Not a Function

Tags

CCSS.8.F.A.1

Does the table represent a function?

• Yes

• No

Tags

CCSS.8.F.A.1

Does this table represent a function?

• Yes

• No

Tags

CCSS.8.F.A.1

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

Mr. Maenz has decided to start saving money for Henry's College Fund. Mr. Maenz puts $500 into a bank account and adds $20 to it each month. Which equation shows the proper Initial Value and Rate of Change?

Tags

CCSS.8.F.B.4

CCSS.HSF.LE.A.2

Tim bought a new phone. He paid $125 on the day of purchase, then $50 per month until it was paid off. What linear equation models this situation?

• y = 50x - 135

• y = 50x + 125

• y = 125 + 50

• y = 50x

Tags

CCSS.8.F.B.4

CCSS.HSF.LE.A.2

Which situation below is representative of an initial value?

• putting $300 a month into savings

• buying $30 worth of supplies for a lemonade stand

• Spending $3 per ride at the fair

• Paying $2 for parking every day

Tags

CCSS.8.F.B.4

CCSS.HSF.LE.A.2