Can you please explain how to do this
ANSWER ASAP

Iwill give brainliest only if your correct the words subsequent and submerge both contain the prefix sub. based on this information, what does the prefix sub most likely mean? a) under or secondary b) true or verifiable c) tricky or difficult d) around or centered on

The graph represents the gallons of water in a water tank with respect to the number of hours since it was completely filled

[10 points, algebra 2]according to my answer key the restrictions are -1 and 4. but why not positive 1?