Function Form Linear Functions

What equation does the table represent?

• y=x+1

• y=x-1

• y=2x+1

• y=2x-1

Which equation matches the table?

• y=2x

• y=x-3

• y=x+2

• y=1/2x

Writing Equations:
Given the following table, write the linear equation.

• y = 9x + 3

• y = 3x + 12

• y = 3x + 9

• y = 1x + 12

Which graph is linear?

• Graph A

• Graph B

• Graph C

• Graph D

Printer ink costs $16.89 per cartridge. The company that sells the ink cartridges charges a flat rate shipping fee of $4.25, no matter the number of cartridges purchased in a single order. 

 

Which linear function models the total cost, t, for a single order of c cartridges?

• c = 21.14t

• c = 16.89t + 4.25

• t = 21.14c

• t = 16.89c +4.25

Printer ink costs $18.99 per cartridge. The company that sells the ink cartridges charges a flat rate shipping fee of $7.95, no matter the number of cartridges purchased in a single order. Which linear function models the total cost, t, for a single order of c cartridges?

• c = 26.94t

• c = 18.99t + 7.95

• t = 26.94c

• t = 18.99c + 7.95

Printer ink costs $16.89 per cartridge. The company that sells the ink cartridges charges a flat rate shipping fee of $4.25, no matter the number of cartridges purchased in a single order. Which linear function models the total cost, t, for a single order of c cartridges?

• c = 21.14t

• c = 16.89t + 4.25

• t = 21.14c

• t = 16.89c +4.25

A taxi company charges a flat fee of $3 plus $2 per mile driven. Write the function that represents the total cost (C) as a function of the number of miles driven (m). Then, interpret the rate of change and the initial value.

• C(m) = 2m + 3

• C(m) = 3m + 2

• C(m) = 4m + 1

• C(m) = 5m + 2

• A
• B
• C
• D

Does this mapping diagram represent a function?

• No, because there are repeating input values

• Yes, because there are no repeating input values