Question 377513
  <pre><font size = 3 color = "indigo"><b>
Hi
*Note: When Quantities vary directly,they are related by the relationship:
 In general:{{{y = k*x}}} k being  the constant of proportionality.

y varies directly as the square root of x
{{{y = k*sqrt(x)}}}
   y=32 when x=16
   32 = k*4
    8 = k
What is y when x=50
{{{y = 8*sqrt(50)= 8*sqrt(25*2)= highlight(40*sqrt(2)) }}}