F(x)= ax+b where a and b are integers f(-1)= -5 , f(3)= 3 , evaluate a and b
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f(-1)=a(-1)+b=-5⇒-a+b=-5............(1)f(3)=a(3)+b=3⇒3a+b=3...........(2)equation (1)-(2)-a-3a=-5-3-4a=-8
a=2 put the value in (1)-(2)+b=5b=7
a=2 put the value in (1)-(2)+b=5b=7
aliakaur7011:
Its not the write ans ... it should be like this -a-3a=-5-3
-4a=-8 and a=-8/-4=2 and b is -3
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