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.

Dashboard

PA

Pearson Algebra 2 Common Core, 2011 View details

3. Rational Functions and Their Graphs

Finish the assignment

Continue to next subchapter

Exercise 68 Page 523

How can you isolate x?

Inequality: x≥36
Graph:

Practice makes perfect

Inequalities can be solved in the same way as equations, by performing inverse operations on both sides until the variable is isolated.

2(x+9)≥90

DivIneq

.LHS /2.≥.RHS /2.

x+9≥ 45

SubIneq

LHS-9≥RHS-9

x≥ 36

This inequality tells us that all values greater than or equal to 36 will satisfy the inequality. Below we demonstrate the inequality by graphing the solution set on a number line. Notice that x can equal 36, which we show with a closed circle on the number line.