Question

obter a intersecção das retas ab e cd dados a (3,10 ( (b -2,5( ( c-2,13( e( d 7,4)

a)2,9
b)-2,-9
c)9,2
d(-9,-2
e)n.d.a

Answer 1

ab = (x-y = 7)
cd = (x+y = 11)
x = 7 + y
7 + 2y =11
y = 2; x = 9;
(a)