Keerthana
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What is the distance of the point (2, 3) from the line 2x + 3y + 4 = 0 ?

a

1513\frac{15}{\sqrt{13}}

b

1613\frac{16}{\sqrt{13}}

c

1713\frac{17}{\sqrt{13}}

d

813\frac{8}{\sqrt{13}}

Answer : Option C
Explanation :
Let the distance be d

d=2x+3y+422+32\Rightarrow d=\left|\frac{2 x+3 y+4}{\sqrt{2^{2}+3^{2}}}\right|

d(2,3)=2×2+3×3+413d_{(2,3)}=\left|\frac{2 \times 2+3 \times 3+4}{\sqrt{13}}\right|

d(2,3)=1713d_{(2,3)}=\left|\frac{17}{\sqrt{13}}\right|

d(2,3)=1713\Rightarrow d_{(2,3)}=\frac{17}{\sqrt{13}} units

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