X is directly proportional to the square of Y,what is the percentage change in X if y increases by25%

Answer 1

x = ky^2
(1.25y)^2 - y^2 = .5625 y^2

.5625y^2/y^2 = .5625 = 56.25%

Answer 2

Nice but not explanatory work

Answer 3

Pls i want a full explaination

Answer 4

Please I want a full explanation