XL UNIT 3 REVIEW 2

Front

What is a linear function?

Back

A linear function is a function that graphs to a straight line. It has a constant rate of change and no repeats in the domain.

Front

What is the domain of a function?

Back

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

Front

What is the range of a function?

Back

The range of a function is the set of all possible output values (y-values) that result from the function.

Front

What does the vertical line test determine?

Back

The vertical line test determines if a graph represents a function. If a vertical line intersects the graph at more than one point, it is not a function.

Front

What is a constant rate of change?

Back

A constant rate of change means that for every unit increase in x, the value of y increases by a fixed amount.

Front

If f(x) = -2, what does it mean?

Back

It means that when the input value x is substituted into the function f, the output value is -2.

Front

How do you find the x-value when given f(x)?

Back

To find the x-value when given f(x), set the function equal to the given output and solve for x.

Front

What is the significance of repeats in the domain?

Back

Repeats in the domain indicate that the relation is not a function, as a function can only have one output for each input.

Front

What is the greatest rate of change in linear functions?

Back

The greatest rate of change in linear functions is determined by the slope; the function with the highest slope has the greatest rate of change.

Front

What is a function?

Back

A function is a relation that assigns exactly one output value for each input value.