Question

If h(x) = x − 1 and j(x) = −4x, solve h[j(5)] and select the correct answer below.

−21
−20
−19
−16

Answer 1

-21. J(x)= -4(5)= -20 ; H[J(5)]= -20-1 = -21

Answer 2

Answer:

Option A is correct

$h[j(5)] = -21$

Step-by-step explanation:

Given the functions:

$h(x) = x-1$ and

$j(x) = -4x$

Find the value of $h[j(5)]$

$h[j(x)]$

⇒$h[-4x]$

Replace x with -4x in h(x) we have;

$h[j(x)] = -4x-1$

Substitute x = 5 we have;

$h[j(5)] = -4(5)-1$

⇒$h[j(5)] = -20-1=-21$

Therefore, the value of $h[j(5)]$ is, -21