Respuesta :

lastbenchstudent
(jk)(x)= j (k(x)) = j(9-2x)

= -7(9-2x) = -63 + 14x

but i see there is no such option. may be second option is typo.

so you can select 2nd option
alinakincsem

Answer:

The correct answer is [tex](jk)(x) = -63+14x[/tex].

Step-by-step explanation:

We are given the following two functions, [tex] j ( x ) = - 7 x [/tex] and [tex] k ( x ) = 9 - 2 x [/tex] and we are to find the value of [tex] ( j k ) ( x ) [/tex].

Applying the function j on function k to get:

[tex](jk)(x) = -7(9-2x)[/tex]

[tex](jk)(x) = -63+14x[/tex]

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