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Questions  >>  SAT  >>  Math  >>  Quadratic Equations
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Q)

$y=mx+c$, where $m$ and $c$ are constants. When $x=5$ => $y=25$. When $x=10$ => $y=35$. What is the value of $c$ ?

$\begin{array}{1 1} (a)\;16 \\ (b)\;25 \\ (c)\;18 \\(d)\;19 \end{array} $

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