Exponential Functions Quiz

What is the general form of an exponential function?

• f(x) = ax + b

• f(x) = a * b^x

• f(x) = a/x

• f(x) = ax^2 + bx + c

For the function f(x) = 1/2 * 3^x, what is f(0)?

• 0

• 1/2

• 3

• 1

What is the y-value of f(x) = 1/2 * 3^x when x = 2?

• 9

• 1/2

• 3

• 4.5

In the function f(x) = 5 * 2^(-x), what is the y-intercept?

• 5

• 1

• 0

• 2

For f(x) = 5 * 2^(-x), what is f(-1)?

• 1

• 10

• 5

• 2.5

What is the value of f(2) for the function f(x) = 5 * 2^(-x)?

• 5/4

• 0.5

• 1.25

• 2

How do you determine the y-intercept of an exponential function?

• Set x to 1

• Set x to 0

• Set y to 0

• Set y to 1

In the equation f(x) = a * b^x, what does 'a' represent?

• The exponent

• The base

• The y-intercept

• The slope

What is the base value 'b' if f(1) = 2.5 and a = 1/2?

• 5

• 6

• 4

• 3

How can you express f(x) = 2 * 1/2^x in another form?

• 2 * 2^(-x)

• 2 * 2^x

• 1/2 * 2^(-x)

• 1/2 * 2^x