1, it is an increasing function. The given function'>

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Big Ideas Math Integrated I, 2016

BI

Big Ideas Math Integrated I, 2016 View details

1. Exponential Functions

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Exercise 23 Page 278

Start by finding the y-intercept of the function.

A

Practice makes perfect

Let's analyze the given function.

y= 2( 2)^x We see that the initial value of the function is 2 and the constant multiplier is 2. Therefore, it intercepts the y-axis at (0, 2). Since 2>1, it is an increasing function. The given function matches graph A.

Extra

Graphing Exponential Functions

When we draw an exponential function y=ab^x, the values of a and b change the shape of the graph. The graphs below show possible graphs of exponential functions.

Subchapter links

Communicate Your Answer p.273

Monitoring Progress p.274-277

Exercises p.278-280