T-QAD Day 20 @ 10 Mei 2020

Topic: Coordinate Geometry - Distance between two points & Division a of line segment

• The distance between two points          and       is  :

           

• The midpoint between two points          and       is :

                

• If R(x,y) internally divides the line segment PQ in the ratio PR : RQ = m : n, then :

                      

Question 1 : Q1/D20/100520

If point   A(4 , k) is equidistant from points B(3, -4) and  C(-3, 4), find the value of k.
                                                                                                                     [ 3 marks]


Question 2 : Q2/D20/100520
The point R is a point on the line segment that connects the points M(3, 9) and N(7, 1) such that
MR= 3RN. Find the coordinates of point R.
                                                                                                                  [ 3 marks]

Answers T-QAD 7 Mei 2020

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