3RD TIME POSTING!!!!!!

Determine whether y varies directly with x. if so, find the constant variation of k.?

x l y
4 l 6.4
7 l 11.2
10 l 16
13 l 20.8

Question

3RD TIME POSTING!!!!!!

Determine whether y varies directly with x. if so, find the constant variation of k.?

x l y
4 l 6.4
7 l 11.2
10 l 16
13 l 20.8

anonymous · Answer

@robtobey

anonymous · Answer

@ashley_f97

anonymous · Answer

@kropot72

oaktree · Answer

I'm sorry you had to wait so long for an answer! The way to solve this is by dividing each y by its corresponding x and seeing if the numbers you get are the same every time. Since$$\frac{ 6.4 }{ 4 } = \frac{ 11.2 }{ 7 } = \frac{ 16}{ 10 } = \frac{ 20.8 }{ 13 } = 1.6$$We know that there is a direct variance. The equation is then$$y = 1.6x$$Makes sense?

anonymous · Answer

you deserve 5 medals for this thank you very much

oaktree · Answer

No problem! Just fan me or something and that way you'll be able to grab me on any other questions you have.