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What is the distance of the point $(-3,4)$ from the origin?
A$1$
B$5$
C$7$
D$25$
Answer & Solution
Correct answer: B. $5$
Distance from the origin is $\sqrt{x^2+y^2}$. For $(-3,4)$, this is $\sqrt{(-3)^2+4^2}=\sqrt{9+16}=\sqrt{25}=5$.
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