Question

y is proportional to the square of x. When x = 10, y = 500. Find a
formula connecting y & x and use it to find the value of y when x = 3.
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Answer 1

Answer:

y = 45

Step-by-step explanation:

y = k x^2

500 = k * 10^2

500 = k*100

k = 5

y = 5*x^2

x = 3

y = 5*3^2

y = 45