Question

I dont know what to do?
The variables x and y vary directly. Use
the given values to write an equation that relates x and y.
x = 5, y = 25

Answer 1

@iYuko

Answer 2

\[x=ky\]

Answer 3

This says that x varies directly with y. The k is called the constant of variation and to find its value, you will need to be given a value of x and the corresponding value of y. Your problem provides these values: x=5, y=25

Answer 4

So you substitute these into the equation and solve for k.

Answer 5

Tell me, what will this equation look like?

Answer 6

So 5= 25k?

Answer 7

5=k25

Answer 8

What do you do since k is being multiplied by 25?

Answer 9

OK, so then I will just solve for K?
divide 25 by 5?