body{margin:0;} noscript{z-index: 10000; position: fixed; display: block; height: 100%; width: 100%; background: #fff;} noscript .fa{font-size: 40px; display:block; color: #daa520;} noscript div{margin-top: 6%; padding-left: 20px; padding-right: 20px; text-align: center;} ! You must have JavaScript enabled to use this site.

Pearson Algebra 1 Common Core, 2011

PA

Pearson Algebra 1 Common Core, 2011 View details

1. Adding and Subtracting Polynomials

Continue to next subchapter

Exercise 58 Page 491

What is the general form of an exponential function? What does each of the values represent?

5

Practice makes perfect

We want to identify the initial amount a and the growth factor b in the given exponential function. To do so, let's first recall the general form of an exponential growth function.

y= a * b^x, where a>0 and b>1 Here, a is the initial amount and the base b is the growth factor, which equals 1 plus the percent rate of change expressed as a decimal. Let's now consider the given function. y= 0.2 * 5^x We see that a= 0.2 and b= 5. Therefore, the growth factor is 5.

Subchapter links

Lesson Check p.489

Practice and Problem-Solving Exercises p.489-491

Standardized Test Prep p.491

Mixed Review p.491