Algebra I Review 9/20-9/21

Front

What does the x-axis represent on a graph?

Back

The x-axis shows the independent variable.

Front

What does the vertical line test determine about a graph?

Back

It determines if the graph represents a function by checking for repeating input values.

Front

What is the range of a relation?

Back

The range is the set of all output values (y-values) from a function or relation.

Front

What does the y-axis represent on a graph?

Back

The y-axis shows the dependent variable.

Front

How do you find f(-3) if f(x) = 5x + 2?

Back

f(-3) = 5(-3) + 2 = -15 + 2 = -13.

Front

What is a function?

Back

A function is a relation where each input has exactly one output.

Front

What is the domain of a function?

Back

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

Front

What is the difference between independent and dependent variables?

Back

The independent variable is manipulated or changed, while the dependent variable is measured or observed.

Front

What does it mean if a graph has repeating x-values?

Back

It means the graph does not represent a function.

Front

What is a linear function?

Back

A linear function is a function that graphs to a straight line, typically in the form y = mx + b.