Question

Use the function z = a - 1 to find the value of z when a = 5.

Answer 1

Use the function z = a - 1 to find the value of z when a = 5.​

we have the function

`z=a-1`

For a=5

substitute in the given function

`\begin{gathered} z=(5)-1 \\ z=4 \end{gathered}`

therefore

the answer is

the value of the function is 4

Part 2

use the function s=k+8 to find the value of s when k =4

we have

`s=k+8`

substitute the given values

`\begin{gathered} s=(4)+8 \\ s=12 \end{gathered}`