IM Algebra Unit #4 Functions Review

Front

What is a piecewise function?

Back

A piecewise function is a function that is defined by different expressions or formulas for different parts of its domain.

Front

How do you evaluate a piecewise function?

Back

To evaluate a piecewise function, determine which piece of the function applies to the input value and then use that expression to find the output.

Front

What does N(g) represent in the context of a function?

Back

N(g) represents the number of students who received a grade of g in a class.

Front

If N(8) = 12, what does this mean?

Back

This means that there were 12 students in the class who received a grade of 8.

Front

How do you solve for x in the equation y = x + 5?

Back

To solve for x, rearrange the equation to get x = y - 5.

Front

What does D(t) denote in a distance function?

Back

D(t) denotes the remaining distance to drive after t minutes.

Front

What does D(0) = 10 mean in the context of driving distance?

Back

This means that Luke's remaining distance is 10 miles after 0 minutes of driving.

Front

What is the initial amount of gold coins Harry Potter has?

Back

Harry Potter has 10,000 gold coins in his vault.

Front

How does the function g relate to Harry's expenses?

Back

Function g represents the remaining amount of gold coins as a function of the number of weeks since Harry started taking out coins.

Front

What is the rate at which Harry takes out gold coins?

Back

Harry takes out 850 gold coins each week.