The value of the function f ( x , y ) = 7 x − 3 y + 1 for f ( 2 , − 1 ) , f ( − 4 , 1 ) , f ( − 2 , − 3 ) and f ( 0 , 8 ) .

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Chapter 14.1, Problem 2E

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To calculate: The value of the function f(x,y)=7x−3y+1 for f(2,−1),f(−4,1),f(−2,−3) and f(0,8).

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