Find the Linear Function f(x) that satisfies both of the following conditions a: f(1)=3 b:f(X)= f(x+1)-2
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f(x)= f(x+1)-2 so f(0)= f(0+1)-2= f(1)-2 but f(1)=3 so f(0)=3-2=1 we have two point on the line f(0)=1, and f(1)=3 Linear function y=a*x+b when f(0)=1 --> 1=a*0+b so b=1 when f(1)=3 --> 3=a*1+b so 3 = a+1 we got a=2 the linear function is y=2x +1
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