Find a and b if the points M(2,3) and N(0,7) lie in the graph ax+by=7 {plz give answer it's urgent}
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Answer:
the equation is
ax +by=7
Since the point (2,3)lies on the graph ax+by=7
there fore,
a*2+b*3=7
2a=7-3b. (1)
Also the point (0,7) lies in the given graph.
therefore
a*0+b*7=7
7b=7
b=1
there fore
from(1),
a=7-7*1
=7-7
=0
therefore
reqd a=0,b=1
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