Which equation represents a direct variation?
y = 2x
Y=x+4
Y=1/2x
Y=3/x

If  

y

is directly proportional to  

x

, then we can write

y

=

k

x

,

where  

k

is the constant of proportionality.

If you solve for  

k

, we have

k

=

y

x

,

which is the ratio of  

y

to  

x

.

Hence, the constant of proportionality is the ratio between two quantities that are directly proportional.

Inverse Variation

If  

y

is inversely proportional to  

x

, then we can write

y

=

k

x

,

where  

k

is the constant of proportionality.

If you solve for  

k

, we have

k

=

x

y

,

which is the product of  

x

and  

y

.

Hence, the constant of proportionality is the product of quantities that are inversely proportional.

I hope that this was helpful.

no, the equation would be invalid since they are both not equal.

step-by-step explanation:

here you got

4y-6+4y 2-9

first, you would simplify the equation on the form.

4y-6+4y 2-9

then, move all the terms that contains a y to the left and all the other terms to the right.

+4y-4y+-9-6

finally, you will simplify the left and the right side of the equation.

y=-3

b 1: 45 am

step-by-step explanation:

its that because if it was in the pm it would be 1345