Hi,

What is the linear equation f for which 

f(1)=10  

f(2)=20 

Answer by MathLover1(20850)   (Show Source): You can put this solution on YOUR website!
 What is the linear equation  for which  and 





The general form of a linear function is:











So,  means that we have to substitute, in the general form, 

the unknown  with the value .















now do the  same thing with the following 









in order to find the function , we have to determine the unknown 

coefficients  and .





now subtract  from the , 

















With the known value of , we are going in any of the  equations above, 

substitute  and find out the value of  unknown.





  



  



 



 





Now we could write down the linear function :













 

 

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