Answer:

Step-by-step explanation:

Answer:
-1
Step-by-step explanation:
ssdsdsdsd
Answer: 4x4=16-7=9gallons
She will order 9 gallons
Step-by-step explanation:
An example would be using points
(0,0)(1,2)(7,14)(10,20)
it is a function because each input has only one input.
or
using the vertical line test none of the points are on the same line