If y varies directly as x, and y is 12 when x is 1.2, what is the constant of variation for this relation? a 1 b 10 c 10.8 d 14,4

The value of the constant of variation is 10 .

Option (B) is correct .

Step-by-step explanation:

As given

if y varies directly as x, and y is 12 when x is 1.2 .

Thus

y = kx

Where k is called the constant of variation .

Take y = 12 , x = 1.2

Put theses values in the equation y = kx .

12 = 1.2 × k

k = 10

Therefore the value of the constant of variation is 10 .

Option (B) is correct .

the square root of what number? if you add that, then someone will probably answer the question.

e

step-by-step explanation:

an equation by definition has to have two or more variables (x and 2 in this case)