Question

HHHHHHEEEEEEELLLLLPPPPPP MEH!!! PLS ANSWER QUICKLY! Brainliest!! y is inversely proportional to square of x. Given that y=4 when x=3, find the value of y when x=5

Answer 1

Answer:

y = $\frac{36}{25}$

Step-by-step explanation:

y ∝ $\frac{1}{x^2}$

=> y = $\frac{k}{x^2}$ --------------(1)

Now, y = 4 and x = 3.

Putting in (1)

=> 4 = $\frac{k}{9}$

=> k = 4*9

=> k = 36

Now, y = ?, when x = 5

Putting in (1)

=> y = $\frac{36}{5^2}$

=> y = $\frac{36}{25}$