Interpreting Function Notation

Front

What does the function notation p(x) = 5x + 12 represent?

Back

It represents the total amount of pencils Ms. Brackemyer has after collecting for x number of days.

Front

What does p(8) = 52 mean in the context of the function p(x)?

Back

After 8 days, Ms. Brackemyer has 52 pencils.

Front

How do you interpret the function B(x) = 8x + 25?

Back

It represents the cost (in dollars) of renting a bicycle for x days.

Front

What does B(13) = 129 signify?

Back

The cost of renting the bicycle for 13 days is $129.

Front

How do you calculate the cost of renting a bicycle for 5 days using B(x)?

Back

B(5) = 8(5) + 25 = $65.

Front

What does the function C(x) = 25x + 50 represent?

Back

It represents the labor cost, in dollars, for Contractor A to build a deck, where x is the number of hours of labor.

Front

What does C(2) = 100 mean?

Back

The labor cost for Contractor A is $100 for 2 hours.

Front

How do you evaluate j(x) = 2x + 3 for j(-1)?

Back

j(-1) = 2(-1) + 3 = 1.

Front

What is the general form of a linear function?

Back

A linear function can be expressed as f(x) = mx + b, where m is the slope and b is the y-intercept.

Front

What is the slope in the function p(x) = 5x + 12?

Back

The slope is 5, indicating that for each day, the number of pencils increases by 5.