The value of $k$ if the point $(4, k)$ passes through $x^{2} = 64 - y$

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Solution

Point is $(4, k)$

The equation is $x^{2} = 64 - y$

Put given point in the equation

$⟹ 4^{2} = 64 - k$

$\Rightarrow 16 = 64 - k$

$\Rightarrow k = 64 - 16$

$\Rightarrow k = 48$

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