Khan Academy Static

Two values are said to be in direct proportion when increase in one results in an increase in the other. Similarly, they are said to be in indirect proportion when the increase in one results in a decrease in the other.

8600_Writing_proportions_example.html

8603_Constructing_equations_from_proportions_to_solve_problems.html

8597_Proportionality_constant_for_direct_variation.html

8607_Rates_with_fractions.html

8599_Direct_variation_word_problem_space_travel.html

8605_Proportion_word_problem_cookies.html

8601_Worked_example_Solving_proportions.html

8604_Ratio_problem_with_basic_algebra.html

8598_Direct_variation_word_problem_filling_gas.html

8608_Rate_problem_using_fractions.html

8606_Proportion_word_problem_hot_dogs.html

8595_Intro_to_direct_inverse_variation.html

8596_Recognizing_direct_inverse_variation.html

8602_Solving_hairy_proportions.html