The distance between the points (a, b) and (-1, -b) is: - Vidyadip

MCQ

The distance between the points (a, b) and (-1, -b) is:

A
0
B
1
C
$\sqrt{\text{ab}}$
D
None of the above

✓

Answer

None of the above

Solution:

Distance between two points $({\text{x}_{1, }}{\text{y}_{1}})$ and $({\text{x}_{2, }}{\text{y}_{2}})$ can be calculated using the formula

$\sqrt{{(\text{x}_{2}-\text{x}_{1})}^2+{(\text{y}_{2}-\text{y}_{1})}^2}$

Distance between the points (a, b) and (-1, -b)

$(-1-\text{a})^2+(\text{b - b})^2 = \sqrt{1+\text{a}^2+2\text{b}+4\text{b}^2}$

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