HW #22 Exponential Functions (honors)

Which of the following is an exponential function?

• y = x²

• f(x) = 3x³

• y = x³

• f(x) = 3^x

What is the initial value in y=4(2)^x

• 4

• 2

• x

What is the y-intercept in y=4(2)^x

• (4,0)

• (0,2)

• x

• (0,4)

• (0,8)

What is the starting amount in the problem below?

f(t) = 300(1.05)^t

• 300

• 1.05

• t

• y

What is the growth rate in the problem below?

f(t) = 300(1.05)^t

• 300

• 1.05

• t

• y

What is the common ratio for the function f(x) = 25 (4)^x

• 25

• 4

What is the domain of the function shown below?

• (-2,5)

• (0,12)

• All Real Numbers

• Shifted up 5

• Shifted down 5

• Reflection over the x-axis

• Reflection over the y-axis

What is the range of this function?

• y>4

• y<4

• All Real Numbers

• y>0