Functions review 1

Front

What happens to the graph of the linear function y = x when the equation changes to y = x + 3?

Back

The graph will shift up 3 units.

Front

What are all of the x values or inputs in a function called?

Back

Domain

Front

Does the set (-1,1),(0,0),(1,1),(2,2) represent a function?

Back

Yes.

Front

In the equation y = 2x + 5, what does the y-intercept represent in real-world context?

Back

It initially takes 5 minutes to get homework out and start working.

Front

What is the rate of change for the table if the output changes by 9 for every input change?

Back

9.

Front

What is a function?

Back

A relation where each input has exactly one output.

Front

What is the range of a function?

Back

The set of all possible output values.

Front

What does it mean for a function to be linear?

Back

It means the graph of the function is a straight line.

Front

What is the slope of a line?

Back

The rate of change of y with respect to x.

Front

How do you find the slope from two points (x1, y1) and (x2, y2)?

Back

Slope = (y2 - y1) / (x2 - x1).