Write the variation.
-c varies directly as b.
A) k = cb
B) c = kb

Question

Write the variation.
-c varies directly as b.
A) k = cb 
B) c = kb

Quizplus · Accepted Answer

This is the standard variation formula for direct variation: c = kb, where k is the constant of variation. Since c varies directly as b, we can use this formula, and k will depend on the nature of the problem at hand. The statement "c varies directly as b" means that as b increases, c also increases in a constant proportion. This relationship can be expressed as c = kb, where k is the constant of proportionality. Therefore, choice B is the correct variation equation as it represents this relationship between c and b. Choices A, C, and D are incorrect as they do not accurately represent the direct variation relationship.

Write the Variation. -C Varies Directly as B