Unit 5 Review- Finch

A function is a relation in which every input has only one output

• True

• False

Tags

CCSS.8.F.A.1

Consider the relation shown in the table.

Which input created the output of 15?

• 2

• 5

• 10

Tags

CCSS.5.OA.B.3

Consider the function: f(x)= -4x+5

Find f(3)

• 12

• 7

• -7

Tags

CCSS.HSF.IF.A.2

The x values we plug into a function are called the inputs.

They may be also called the domain of the function.

• True

• False

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.A.1

Which function was used to complete the table of values?

• f(x)= 4x+6

• f(x)= -4x+6

• f(x)= 4x-6

Tags

CCSS.8.F.B.4

CCSS.HSF.LE.A.2

Consider the function f(x)= 1/2x+6

Find the value of the function when the input is 9.

• 2

• -10.4

• 10.5

• -2

Tags

CCSS.HSF.IF.A.2

Consider the function f(x)= 5x+4

If the output, f(x), is equal to 34, what input was used?

• 3

• 4

• 5

• 6

Tags

CCSS.HSF.IF.A.2

When given the graph of a relation, we may use the vertical line test to see if the relation is a function.

Which graph passes the vertical line test?

• 
• 
• 

To hire Johnny's Handyman Service you pay a flat fee of $50 plus an additional $25 per hour.

Write a function that shows the total cost, y, for hiring Johnny's Handyman Service for x hours. Remember f(x) = y

Which choice shows this equation written in function notation?

• f(x)= 25x+50

• f(x)=50x+25

• f(x)=25x+75x

Tags

CCSS.8.F.B.4

CCSS.HSF.LE.A.2

True or False

In a function, each input creates only one output.

However, it is ok if two different inputs create the same output.

For example: (3,9) & (7,9) would be functional.

• True

• False

Tags

CCSS.8.F.A.1