(Q18)Sridhar calculated the distance between T(5,2) and R(-4,-1) to the nearest tenth is 9.5 units. Now you find the distance between P(4,1) and Q(-5,-2).Do you get the same answer that sridhar got? why?.

Given points (4,1) , (-5,-2)

Distance = √((x2 - x1)2 + (y2 - y1)2)

= √((- - )2 + ((-) - ())2

= √( + ) = √ = 9.5

we got the same answer

(x)2 = (-x)2

(x1 - x2)2 = (x2 - x1)2

The given points (4,1) and (-4 , -1) are images to each other and (5,2) , (-5, -2) are also images to each other