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Section 2-7: Solving Equations in One Variable. Chapter 2: Polynomial, Power, and Rational Functions. Objectives. You will learn about: Solving rational equations Extraneous solutions Applications Why?
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Section 2-7: Solving Equations in One Variable Chapter 2:Polynomial, Power, and Rational Functions
Objectives • You will learn about: • Solving rational equations • Extraneous solutions • Applications • Why? • Applications involving rational functions as models often require that an equation involving fractions be solved.
Vocabulary • Rational Equation • Extraneous Solution
Solve by clearing fractions • Solve:
Solving a rational equation • Solve:
Eliminating extraneous solutions • Solve the equation:
Eliminating extraneous solutions • Solve the equation:
Calculating Acid Mixtures • How much pure acid must be added to 50 mL of a 35% acid solution to produce a mixure that is 75% acid?
Finding a Minimum Perimeter • Find the dimensions of the rectangle with a minimum perimeter if its area is 200 square meters.
Designing a Juice Can • Stewart Cannery will package tomato juice in 2-liter cylindrical cans. Find the radius and height of the cans if the cans have a surface area of 1000 cm2.