Question

The table below shows the cost of different numbers of goldfish at a pet store.​

​Number of Goldfish Cost​
​5​ $1.50
10 $3.00
15 $4.50
20 $6.00
​

​​The cost is a linear function of the number of goldfish. Which statement describes the rate of change of this function?​​
A
The cost increases $0.30 each time 1 goldfish is added.
B
The cost increases $1.50 1 goldfish is added.
C
The cost increases $3.00 5 goldfish are added.
D
The cost increases $6.00 5 goldfish are added.
​
​

​​

Answer 1

Answer:Option A

Explanation:

It will option because if you 3/10 it would give 0.3 which can turned into $0.30 and we try it for example 5x0.30, it will give us $1.50 which proves that the cost increases$0.30 each time 1 goldfish is added