Question

Please help
Use the functions m(x) = 5x + 4 and n(x) = 6x − 9 to complete the function operations listed below.

Part A: Find (m + n)(x). Show your work.
Part B: Find (m ⋅ n)(x). Show your work.
Part C: Find m[n(x)]. Show your work.

Answer 1

Another way to look at Part A (m+n)(x) is m(x)+n(x).
So (5x+4) + (6x-9).

Answer 2

For Part B, which is (m⋅n)(x), another way to look at it is:
m(x)⋅n(x)
so, (5x+4)(6x-9)

Answer 3

For part c,

which is m[n(x)]

so m(x) = 5x + 4
now you have to sub in the function n(x) whereever there is an "x" in m(x).

m(x) = 5x + 4
m(n(x)) = 5(n(x))+4
= 5(6x-9) + 4

Answer 4

Thank you!

Answer 5

No problem :)