Question

What inverse variation equation for the relationship.

y varies inversely with x and y=5 when x=2.

a. y=1/2x
b. y=2x
c. y=x+2
d. y=10/x

Answer 1

do you know what mean invers variation ?

Answer 2

or first can you tel me please what mean direct variation ?

Answer 3

ok looke plaese y=x mean that y variate directly with x - yes ?
so how you think than what will be the invers variation of y to x ?

Answer 4

so invers variation mean that when y increasing , x will decreasing ok ?

Answer 5

do you understand how i have wrote there above ?

Answer 6

hmmm I notice only one person saying anything at all

Answer 7

this mean that

y= 1/x

ok jdoe than please correct me

Answer 8

either the poster fainted or wait to eat dinner or it's just waiting for an answer to transcribe over

Answer 9

went to eat rather
either way.... the poster is suspiciously quiet

Answer 10

@glamourglory do you understand anything from these ?

Answer 11

To understand this question fully, it's pretty important to get what direct variation is.

This is a direct variation function:

y = 3x. (3 is, of course, a constant.) If x increases, y increases threefold. When both variables in the function increase, the variation can be said to be direct.

So what makes an inverse variation function? Well, logic follows that if:

direct variation = both variables increasing with change

then:

inverse variation = one variable increasing, while the other variable decreases.

To represent the inverse nature of this function, we write the function:

y = 3 / x.

You can plug in values to see how this is an inverse function:

If y = 1, x = 3
If y = 2, x = 1.5
If y = 3, x = 1

So we see the inverse nature of the function!

Now, remembering the format of the function, y = 3 /x, we can address your issue.

D pops right out at me. Gotta be the answer.

Rock on!