Chapter 2 Review (Algebra 2)

Front

What is a function?

Back

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

Front

How can you determine if a relation is a function?

Back

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

Front

What is the equation of the absolute value function that opens upwards?

Back

Front

What does the slope of a line represent?

Back

Front

What is the slope of a vertical line?

Back

The slope of a vertical line is undefined.

Front

What is the slope of a horizontal line?

Back

The slope of a horizontal line is 0.

Front

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

Back

Front

What is the absolute value of a number?

Back

The absolute value of a number is its distance from zero on the number line, always non-negative.

Front

What is the vertex of an absolute value function?

Back

Front

What does it mean for a relation to be 'not a function'?

Back

It means that at least one input corresponds to multiple outputs.