U3LT 2 Flashcard Review (Function Notation and Evaluating Functions)

Front

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

Back

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

Front

How do you read f(x)?

Back

f of x

Front

Given h(x) = 5 - 9x, find h(8).

Back

h(8) = 5 - 9(8) = -67

Front

What is the composition of functions f(g(x)) if f(x) = 3x - 2 and g(x) = 4x?

Back

f(g(x)) = 3(4x) - 2 = 12x - 2

Front

Fill in the blank: f(5) = ?

Back

12

Front

What does the notation f(x) represent?

Back

f(x) represents a function named f evaluated at x.

Front

If f(x) = 2x + 3, what is f(0)?

Back

f(0) = 2(0) + 3 = 3

Front

What is the value of f(2) if f(x) = x^2 - 1?

Back

f(2) = 2^2 - 1 = 3

Front

If g(x) = x + 4, what is g(3)?

Back

g(3) = 3 + 4 = 7

Front

What is the output of f(x) = 5x - 2 when x = 1?

Back

f(1) = 5(1) - 2 = 3