Evaluate Functions

Front

What does it mean to evaluate a function at a specific point, such as f(2)?

Back

It means to substitute the value of x with 2 in the function and calculate the corresponding y value.

Front

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

Back

f(-3) = (-3)^2 = 9.

Front

What is the output of the function f(x) = 3x + 4 when x = 0?

Back

f(0) = 3(0) + 4 = 4.

Front

How do you find f(1) if f(x) = 2x + 1?

Back

Substitute x with 1: f(1) = 2(1) + 1 = 3.

Front

What is the value of f(8) if the graph shows that f(8) = 1?

Back

f(8) = 1.

Front

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

Back

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

Front

What does it mean if f(x) = -2?

Back

It means that the output of the function is -2 for some input x.

Front

If f(x) = x^2, what is f(4)?

Back

f(4) = 4^2 = 16.

Front

What is the definition of a function?

Back

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

Front

If f(x) = x + 5, what is f(-2)?

Back

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