find given the funcrion k described by k(x) =12x, find each of the following (a) k(-19),(b0 K (10)(c) k(21),k(-19)=
k ( x ) = 12 x
k ( - 19 )
x = - 19
k = 12 * ( - 19 ) = - 228
k ( - 19 ) = - 228
k ( 10 )
x = 10
k = 12 * 10 = 120
k ( 10 ) = 120
k ( 21 )
x = 21
k = 12 * 21 = 252
k ( 21 ) = 252