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Can someone please clearly explain Question 7 and how to work this out?

Can someone please clearly explain Question 7 and how to work this out?-example-1
User Melpomene
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1 Answer

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make x the subject means you need to solve for x

y = ax^2 solve for x

divide both side by a

y/a = ax^2/a

simplify
y/a = x^2
so
x = square root (y/a)
User Williamvicary
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