Intro to Exponential Functions

Front

What type of function is y = 7(5/4)^x?

Back

Exponential Growth

Front

In an exponential function, what does the 'a' represent?

Back

y-intercept

Front

What is the y-intercept of the function y = 3(2)^x?

Back

3

Front

Identify the y-intercept (initial value) of the function f(x)=2(4)^x.

Back

2

Front

Is the equation y = 5(3)^x linear, exponential or neither?

Back

Exponential

Front

What is the general form of an exponential function?

Back

y = a(b)^x, where a is the initial value and b is the base.

Front

What does the base 'b' in an exponential function indicate?

Back

The growth factor; if b > 1, it's growth; if 0 < b < 1, it's decay.

Front

How do you determine if a function is exponential?

Back

Check if the variable is in the exponent and the base is a constant.

Front

What is the y-intercept of the function f(x) = 5(2)^x?

Back

5

Front

If a function has a y-intercept of 4, what is the value of 'a' in y = a(b)^x?

Back

4