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f (x) = - 5 x - 4

f ( - 5 ) = - 5 * - 5 - 4 = 25 - 4 = 21

g (x) = 2 x² - 4 x + 4

g ( - 2) = 2 ( - 2 )² - 4 * - 2 + 4 = 8 + 8 + 4 = 20

h (x) = ( 3 x + 2 )²

h ( - 2 ) = ( - 6 + 2 )² = ( - 4 )² = 16

i (x) = ( - 3 x + 3 ) ( - 2 x + 4 )

i ( - 1 ) = ( 3 + 3 ) ( - 2 + 4 ) = 6 * 2 = 12

j (x) = 6 x + 6 / - 3 x + 12

j ( 2 ) = ( 12 + 6 ) / ( - 6 + 24 ) = 18/ 18 = 1

k (x) = 12 x - 3

k ( 7/3 ) = 84/3 - 3 = 28 - 3 = 25

l ( x) = 2 x² + 7 x + 2

l ( 1) = 2 + 7 + 2 = 11

m (x) = - 6 x + 6

m ( 1/6 ) = - 6/6 + 6 = - 1 + 6 = 5