1.

The distance of the point P(-6,8) from the origin is(a) 8(b) 2√7(c) 6(d) 10

Answer»

The distance of a point (x,y) from the origin O(0,0) is \(\sqrt{x^2+y^2}\)

Let P(x = -6,y = 8) be the gen point. Then

\(OP=\sqrt{x^2+y^2}\)

\(\sqrt{(-6)^2+8^2}\)

\(\sqrt{36+64}\)

\(\sqrt{100}=10\)



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