Question

The number of calories varies directly with the number of grams of protein. Write a direct variation equation that describes the relationship. Use your equation to determine the number of calories from 25 grams of protein.

Answer 1

A direct variation equation describes a relationship where one variable is directly proportional to another variable, such as the number of calories being directly proportional to the number of grams of protein.

Step-by-step explanation:

A direct variation equation describes a relationship where one variable is directly proportional to another variable. In this case, the number of calories is directly proportional to the number of grams of protein. We can represent this relationship using the equation:

Calories = k * Protein

Where 'k' is the constant of variation.

To determine the number of calories from 25 grams of protein, we can plug in the value of protein into the equation:

Calories = k * 25

In order to calculate the actual value of calories, we need to know the value of 'k'.