Asked by Vinah

Given that x varies directlyas the square root of y and x=2 when y=1 find x when y=4
Answered by PsyDAG
Take the square root of y = 4 and multiply by 2.
Answered by oobleck
x = k√y
so, x/√y = k, a constant
You just need x so that
x/√4 = 2/√1
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