Question

The functions u and w are defined as follows.

u(x) = -2x+1
w(x) = -2x²-1
Find the value of u (w (2)).
u (w (2)) = 0

Answer 1

`u(w(2) = 19`

Explanation:

let's evaluate w(2) first

`w(2) = - 2(2) {}^(2) - 1 = - 9`

at this point let's replace thia value in u(x)

`u( - 9) = - 2( - 9) + 1 = 19`