5-1 and 5-2 Review

Front

Back

32

Front

What is the y-intercept of the function f(x) = 2(4)^x?

Back

3

Front

Is the pictured graph increasing, decreasing, or neither?

Back

Increasing

Front

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

Back

2

Front

Which function models this table?

Back

f(x) = 2⋅4^x

Front

What is the definition of a y-intercept?

Back

The y-intercept is the point where a function crosses the y-axis.

Front

What does it mean for a function to be increasing?

Back

A function is increasing if its output values rise as the input values increase.

Front

What does it mean for a function to be decreasing?

Back

A function is decreasing if its output values fall as the input values increase.

Front

How do you find the y-intercept of a function?

Back

Set x = 0 and solve for f(x).

Front

What is the general form of an exponential function?

Back

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