Question

If f (x) =-3x+ 7 , then f (1) = ?

Answer 1

f(x) = -3x + 7

F(1) = -3 (1) +7

        = -3 +7

        = 4

Answer 2

f (1 )=-3×1+7=4 by multiplying- 3×1we get- 1 and then add 7 we get 4