Question

x varies directly as y^2.given that for y=3, x=2. the value of x when y =5 will be

Answer 1

x varies directly with y²
That gives x=k y²  , where k is the constant
For value of y= 3 and x=2
 We have 2 = k 3² = k 9 ⇒ k = 2/9
For value of y = 5
 We have  x =(2/9)*5²=50/9
Value of x=50/9

Answer 2

Answer:

50/9

Step-by-step explanation:

x is directly proportional to y²

x=ky²where k is a constant

for y= 3 X=2

k= X/y²=2/3²=2/9

for y = 5,X= ky²= 2/9 ×5²=50/9

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