Stage 9 · Rational Expressions & Equations
9.1.5 Describing Quantities with Rational Expressions
9.1 From Polynomials to Fractions: Meeting the Rational Expression
Point 5 of 5
9.1.5 Describing Quantities with Rational Expressions
Core ideaDistance divided by speed gives time — turn a real situation into an expression with a letter in the denominator and write the rational expression.
Module goal. Extend last stage's factoring to expressions with letters in the denominator, building the idea of a rational expression and the condition for it to make sense.