Question

Find the values ofxfor which the distance between the pointsP(x,4)andQ(9, 10) is 10 units.

Answer 1

Answer:

distance between two points is given by,

√[(x2-x1)^2+(y2-y1)^2],

therefore,

√[(9-x)^2+(10-4)^2] = 10,

=> (9-x)^2+36 = 100,

=> (9-x)^ 2 = 64,

=> (9-x) = 8,

=> x = 1.