Answer:
y = 0.01x + 300
Step-by-step explanation:
There are some missing information in the question that are shown below:
If it spends no money on advertising, it sells 300 units
For each $1,500 additional spent, an additional 15 units are sold.
Given that
Number of units sold in case of no money spending = 300 units
Additional money spent = $1,500
Additional units sold = 15 units
By considering the above information, the formula is presented below:
y = 0.01x + 300
where,
0.01X is come from
= (Number of units sold in case of no money spending + Additional units sold - Number of units sold in case of no money spending) ÷ (Additional money spent)
= (300 units + 15 units - 300 units) ÷ ($1,500)
= 0.01X