How do you solve $Y = (x - 5)² - 9$ ?

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Answer 1 · 2015-07-20T13:50:21

$x=5+-sqrt(Y+9)$

You have the solution of $Y$ in terms of $x$ , to reverse this and solve for $x$ in terms of $Y$ we have:

$Y=(x-5)^2-9$ => $(x-5)^2=Y+9$
=>
$x=5+-sqrt(Y+9)$

How do you solve Y = (x - 5)² - 9Y = (x - 5)² - 9?