Question

Determine whether each linear function is a direct a variation. If so, state the constant of variation. If not, explain why notI need help for number 6

Answer 1

In direct variation function, variables x and y are related by the next formula:

y = kx

where k is the constant of variation.

Isolating k for the above formula, we get:

k = y/x

Computing y divided by x with the values of the table:

`(5)/(10)\\e(6)/(11)\\e(7)/(12)\\e(8)/(13)`

Given that all the quotients are different, then the linear function is not a direct variation