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WORKBOOK

12) In the given triangle AC 5 CD and A, C and D are collinear. Find |BD|.

13) ABC is a triangle with vertices A(–2, 1), B(4, 1) and C(2, 6). Find the
length of median of [AB].

ANSWERS

1)a)8 b)16 2) x=-1 and x=-5 3) 1,0,1 4) a) 11/2 b)(6, -17/2) 5) 0 6)a)5 b)2 5
7)x=-2 y=2 8)0, -4 10)a) P(-4,2) b) P(10,-19) 11) 26 12)10 13) 26

EXERCISES 2

1) Find the slope of line PQ which is passing through the points P and Q and sketch it’s graph
if

i) P(-2,-1) and Q(4,-1) ii) P(-2,3) and Q(5,1)

iii) P(3,2) and Q(3,-4) iv) P(1,3) and Q(4,3)

2) Find the value of k, if A(1,3) , B(3,-2) and C(k+2, k-4) are collinear.

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