Question

The function y = 2.5x - 1.5, represents the cost, y, of all tickets sold, x. What is true about the function?

Answer 1

Answer:

A

Step-by-step explanation:

y = 2.5x - 1.5

x          y

2          3.5

3          6

4          8.5

5          11    

The function is linear for one thing, because it does have a constant rate of change.

6 - 3.5 = 2.5

11 - 8.5 = 2.5

D is incorrect. because it is linear.

C is incorrect because it does have a constant rate of change.

B is wrong because any 1 input gives only one output

A is your answer.