Question

The distance between two points (2,-2) and (-1, x) is 5. One of the value of x is---
a) -6
b) 6
c) -5
d) 5

Answer 1

Answer:

x= -6 Diagonally the distance is measured

Answer 2

Hi Mate!!!

Distance between any two points can be calculated by using distance formula.

√{ ( x+2)² + ( -1 - 2 )² } = 5

=>. Squaring both sides

=>. x² + 4 +4x +9 = 25

=>. x² + 4x -12=0

=>. x = -4 + √ ( 16 +48 ) / 2 =>. x = 2

OR

=>. x = -4 - √ ( 16 + 48 ) / 2. =>. -6


So, x =-6

Have a nyc tym