Answer:
The number of photographs is "No more than 8 photographs" ⇒ C
Step-by-step explanation:
The form of the linear function is y = m x + b, where
- m is the constant rate
- b is the initial amount (fixed amount)
∵ The photographer charges a sitting fee of $15
- That means its a fixed amount
∴ The fixed amount = 15
∵ He charges $4 for each 5 in. by 7 in.photograph the
customer orders
∴ The constant rate = 4
∵ The customer’s cost is c
∵ The number of photographs purchased is n
∴ The linear function is c = 4 n + 15
∵ You cannot spend more than $50
- That means c ≤ 50
∴ 4 n + 15 ≤ 50
- Subtract 15 from both sides
∴ 4 n ≤ 35
- Divide both sides by 4
∴ n ≤ 8.75
∵ The number of photographs must be integer
∵ The first integer smaller than 8.75 is 8
∴ The number of photographs is "No more than 8 photographs"
