Question

Thanks for the help pt.1​

Answer 1

(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

Answer 2

The correct answer is
`(jk)(x) = -63+14x`.

Explanation:

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

Applying the function j on function k to get:

`(jk)(x) = -7(9-2x)`

`(jk)(x) = -63+14x`