Question

The scatter plot shows the wages of employees.

y + 6x + 120

1. If an employee earns $570, what is the
expected number of copiers sold?​

Answer 1

(1) The expected number of copies sold is 75

(2) The expected wage is $720

Step-by-step explanation:

From the graph, we can see that x represents the number of copiers sold.

y represents the wages.

The equation of the graph is
`y=6x+120`

(1) Given that an employee earn $570.

We need to determine the number of copiers sold.

Let us substitute
`y=570` in the equation
`y=6x+120`, we get,

`570=6x+120`

`450=6x`

`75=x`

Thus, the number of copiers sold is 75

(2) Given that if an employee sells 100 copiers, we need to determine the expected wage.

Let us substitute
`x=100` in the equation
`y=6x+120`, we get,

`y=6(100)+120`

`y=600+120`

`y=720`

Thus, the expected wage is $720