NC Math Units 1-3 Mega-Review

Front

What is the formula to calculate the amount of money after doubling for a certain number of months?

Back

Amount = Initial Amount * (2^n), where n is the number of months.

Front

If a function's y-values decrease as x-values increase, what is the function's behavior?

Back

The function is decreasing.

Front

What is a function?

Back

A relation where each input (x-value) has exactly one output (y-value).

Front

If a function's y-values increase as x-values increase, what is the function's behavior?

Back

The function is increasing.

Front

How do you identify an interval where a function is increasing?

Back

Look for intervals where the y-values rise as the x-values increase.

Front

What does it mean for a function to be constant?

Back

The function's output (y-value) does not change as the input (x-value) changes.

Front

What is the significance of the x and y axes in a graph?

Back

The x-axis represents the input values, and the y-axis represents the output values.

Front

What is the difference between increasing and decreasing functions?

Back

Increasing functions have y-values that rise with x-values; decreasing functions have y-values that fall with x-values.

Front

What is an example of a function that is constant?

Back

f(x) = 5 is constant because it always outputs 5 regardless of x.

Front

How can you determine if a relation is a function using a graph?

Back

Use the vertical line test: if a vertical line intersects the graph at more than one point, it is not a function.