1.

EXERCISE 7.2Find he coordinates of the point which divides the join off, 73 รกnd (4,-3in the2

Answer»

A = (-1, 7) and B = (4, -3)

So,x1=−1,y1=7,x2=4andy2=−3

We also have;m1=2andm2=3

Let us assume P is the point of division

Coordinates of P can be calculated as follows by using section formula:

x=m1x2+m2x1/m1+m2

=2×4+3×−1/5

=8−3/5=5/5=1

y=m1y2+m2y1/m1+m2

=2×−3+3×7/5

=−6+21/5=15/5=3

Hence, P = (1, 3)

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