Does this graph represent a function? Why or why not? O A. No, because it is not a straight line
B. Yes because it passes the horizontal line test.
C No, because it fails the vertical line test.
R. Yes because it passes the vertical line test.

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

Acar started driving from city a to city b, distance between which is 620 miles, at a rate of 60 mph. two hours later a truck left city b and started moving towards city a at a rate of 40 mph. how many hours after the truck's departure will the two meet?

Can someone explain to me how to do