Exponential

Which represents exponential decay?

• A

• C

• B

• D

Determine the range for the function

f(x) = 3(2)^x-4 + 5

• A. [5,∞)

• C. (5,∞)

• B. [4,∞)

• D. (4,∞)

Which of the following is an increasing exponential function whose y-intercept is 50?

• A. y = 50(.05)^x+1

• C. y = 50x - 4

• B. y = (2)^x + 50

• D. y = 50(1.4)^x

Create the exponential function with the following attributes:

Asymptote: y = 0

Initial value: 3

Point on the graph: (2, 6)

Growth

Which equation matches the graph?

• y = 2^x+3

• y = 2^x + 3

• y = 2^x

• y = 2^-x

The function shown is a(n)​ (a)   function.

This function shows ​ (b)   because the graph is decreasing.

The horizontal asymptote is at ​ (c)  

• exponential

• decay

• y=-1

• linear

• x=-1

• growth

A shipping company started with 40 employees. The number of employees in the shipping company increases at a rate of 7.5% each year. What function can be used to model the number of employees, f(x), in the shipping company after x years?

There were 417 cell phones sold at an electronics store in January. Since then, cell phone sales at this store have increased at a rate of 3.75% per month. At this rate of growth, which function can be used to determine the monthly cell phone sales x months after January?

Solve the equation for x.

• 7.389

• 0.693

• 0.0183

• 6.581

Which is the correct "step 1" to solve for x?
Hint: look at the schoology discussions if you feel stuck