NHS Midterm Review Unit 3

Front

If f(x) = 3x + 1, what is f(2)?

Back

f(2) = 7

Front

What are the numbers that belong in the function table for the given function?

Back

-6, 15, -21, -33, -9

Front

In the equation y = 1.5x + 20, what does 1.5 represent?

Back

The price per ride at the amusement park.

Front

What is a function?

Back

A relation where each input has exactly one output.

Front

Is the relation {(1,2), (2,3), (3,4)} a function?

Back

Yes, because each input has one output.

Front

What does the equation y = -25x + 120 represent in a real-world context?

Back

It describes a tank releasing water at a rate of 25 gallons per minute.

Front

What is the slope in the equation y = mx + b?

Back

The slope (m) represents the rate of change of y with respect to x.

Front

How do you determine if a relation is a function using the vertical line test?

Back

If a vertical line intersects the graph at more than one point, it is not a function.

Front

What is the y-intercept in the equation y = 2x + 5?

Back

The y-intercept is 5.

Front

What does the term 'domain' refer to in a function?

Back

The set of all possible input values (x-values) for the function.