Standard+2.1b-sm

Standard 2.1b: Use function notation to add, subtract,multiply, and divide fractions.

 * Example Problems for Standard 2.1b**


 * Below are two example problems. They range from easy to difficult**.

f(x)=3x^-2 and (g)x=4x+2, What is the value of (f+g)(-1)? You would begin by combining like terms which would leave you with 3x^+4x. Next, plug in -1 in place of the Xs'. Add f&g =3x^+4x 3(-1)^+4(-1) =-1
 * Problem 1-Easy**

Stacey delivers newspapers. She earns $15 each week plus $0.50 for each customer on her route. Write an equation she can use to find c, the number of customers she needs to earn exactly $25 each week?
 * Problem 1 - Difficult**

This question is only difficult because it is asking you to create an equation. It also is a word problem which is often harder for most students. In order to answer this question, think about what operations you have to use to get how much Stacy earns. This helps to create the equation. Well, Stacy makes 15 a week to start. But she also gets .50 for each customer. Well, to find out how much she gets if she had 10 customers, we would multiply .50 by 10 customers. We still would have to add 15 to get her amount. Let's see, we multiplied and added. Let's write an equation in words then replace the words with letters and numbers.

Stacy's weekly pay = .50 x customers + 15 $25 = .50c + 15

Podcast for Standard 1.1a
Below is a tutorial on understanding two-step equations and how to solve the problems.