Question

Determine whether y varies directly with x. If so, find the constant of variation k. y+2x=–19

Answer 1

The phrase "y varies directly with x" MEANS \(y = k\cdot x\). If you can put your equatin in exactly that form, then y varies directly with x.

Answer 2

You're right, tkhunny, carry on!

Answer 3

So would the answer be no because the 19 is still attached to the equation?

Answer 4

That is correct. "+ something" is no good. That is NOT direct variation.

Answer 5

Alright! Thank you so much!