Question

I need help with a chart!

for the data in the table, does y vary directly with x? If it does write an equation for the direct variation.

x - 40, 28, 16
y- 32, 16, 12

Answer 1

If there is a direct variation, then the constant is \[k=\frac{ y }{ x }\]
Insert the pairs of numbers and see if you get the same constant each time.

Answer 2

so i did 32 over 40, would it be 1.25? like would i see if all of them are the same?

Answer 3

@Stacey

Answer 4

Yes, they would be the same.

Answer 5

32/40 = .8