Question

If y varies directly as x and y is 12 when x is 1.2, what is the constant of variation for this relation?

Answer 1

y varies directly as x

means
y = k*x

where k is some number. you have to find k for your problem
can you do that ?

Answer 2

Did you mean x and z?

Answer 3

no man
is x and y

Answer 4

Just checking, okay sorry to interrupt phi

Answer 5

y is 12 when x is 1.2

use those numbers in
y = k x

can you replace y with 12 and replace x with 1.2 ?