Question

If the coordinate of two points are P (-5,4) and Q (8,-9) then find the value of:-2 (abscissa of Q)-(ordinate of P).

Answer 1

Abscissa of Q = 8
Ordinate of P = 4
Therefore,
2(abscissa of Q) - (ordinate of P)
= 2(8)-(4)
= 16-4
= 12


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