# MTH 219 Week 4 MyMathLab Study Plan for Week 4 Checkpoint

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MTH 219 Week 4 MyMathLab® Study Plan for Week 4 Checkpoint

7.3
Adding and Subtracting Rational Expressions with the Same Denominator

Subtract rational expressions with the same denominator.

7.4
Adding and Subtracting Rational Expressions with Different Denominators

Find the least common denominator.

Add and subtract rational expressions with different denominators.

7.6
Solving Rational Equations

Solve a formula with a rational expression for a variable.

7.7
Applications Using Rational Equations and Proportions

Solve problems involving work.

7.8
Modeling Using Variation

Solve application problems.

8.1
Introduction to Functions

Evaluate a function.

8.2
Graphs of Functions

Identify the domain and range of a function from its graph.

8.3
The Algebra of Functions

Use the algebra of functions to combine functions and determine domains.

Solve application exercises.