Functions Review 6th

Front

What is a function?

Back

A function is a relation that assigns exactly one output for each input from a set of inputs.

Front

What does f(x) represent in a function?

Back

f(x) represents the output of the function for a given input x.

Front

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

Back

f(1) = 2(1) + 3 = 5.

Front

What is the domain of a function?

Back

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

Front

What is the range of a function?

Back

The range is the set of all possible output values (y-values) for the function.

Front

How do you evaluate a function at a specific point?

Back

To evaluate a function at a specific point, substitute the input value into the function's equation.

Front

What is the value of x in: f(3) = 2x + 1?

Back

x = 3.

Front

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

Back

f(-2) = (-2)^2 + 3 = 4 + 3 = 7.

Front

What does it mean to find f(2)?

Back

It means to substitute x = 2 into the function.

Front

If h(a) = 3 - 2x^2, find h(-3).

Back

h(-3) = 3 - 2(-3)^2 = 3 - 18 = -15.