Question

Soulotion to equation if y is =15 when x=2 ,find y when x=8

Answer 1

Answer:

The value of y for x = 8 is 60  .

Step-by-step explanation:

Given expression as :

For x = 2  , y = 15

Let the equation be written with constant k'

So, y = k x

Or, k = $\dfrac{y}{x}$

∴   k =  $\dfrac{15}{2}$

Now, again

For x = 8

equation can be written as

   y = k x

Or,  y =  $\dfrac{15}{2}$ × 8

Or,  y = $\frac{15\times 8}{2}$

∴    y = 15 × 4

I.e  y = 60

Hence The value of y for x = 8 is 60  . Answer