Exemplo 3 de Algebra and Trigonometry, 3.4 Composition of Functions
Problema e solução em inglês, como no livro original.
The function gives the number of calories burned completing sit-ups, and gives the number of sit-ups a person can complete in minutes. Interpret
Resolva no papel primeiro. Depois abra a solução um passo de cada vez e pare assim que conseguir terminar sozinho.
The inside expression in the composition is Because the input to the s-function is time, represents 3 minutes, and is the number of sit-ups completed in 3 minutes.
Using as the input to the function gives us the number of calories burned during the number of sit-ups that can be completed in 3 minutes, or simply the number of calories burned in 3 minutes (by doing sit-ups).
Como foi?