Function Algebra

Create the explicit formula for the sequence:
2, 8, 14, ...
(Hint:  Write your formula and then simplify it.)

• a_n=2+6n

• a_n=-6+6n

• a_n=6n-4

• a_n=4-6n

• Function
• Not a Function

Identify the function rule that best represents the following statement:
A soda machine sells drinks for 75 cents each. Let d represent the number of drinks bought and C represent the total cost.

• d = $0.75C

• d = $0.75 + C

• C = $0.75 + d

• C = $0.75d

Find the function rule.

• y = 2x

• y = 2x+3

• y = 3x+3

• y = -2x+3

Determine whether the function rule models discrete or continuous data.
A movie store sells DVDs for $15 each. The function C(d) = 15d relates the total cost of movies to the number purchased d.

• discrete

• continuous

Is this function linear or nonlinear?

• Linear

• Nonlinear

Is the graph pictured a linear or nonlinear function?

• Linear

• Nonlinear

Is this function linear or nonlinear?

• Linear

• Nonlinear

Is this function linear or nonlinear?

• linear function

• nonlinear function