Question

Is a software salesmanLet y represent his total say in )Let the of copies of History is sellsSuppose and y are related by the equation y = 2200 + 70x Answer the questions below. Note that a change can be an increase or decrease . For

Answer 1

The answer is "70 and 2200".

Explanation:

Please find the complete question in the attached file.

The total payment = y

The number of copies to be sold = x

`\to y = 70x + 2200`

In part (a):

Change of pay = discrepancies between (x+1) sale and (x) sale of copies for every copy sold

`=[70(x+1) + 2200] - [70x + 2200] \\\\= 70x + 70 + 2200 - 70x - 2200\\\\= 70\\\\`

In part (b) :

`\to y = 70x+ 2200`

when
`x = 0`

`\to y = 70(0) + 2200\\\\`

`=0+2200\\\\=2200`