Which graph represents a function whose corresponding quadratic equation has no solutions?

Can someone answer this question? : )

Elizabeth is using a sample to study american alligators. she plots the lengths of their tails against their total lengths to find the relationship between the two attributes. which point is an outlier in this data set?

Ron has 8 caps and 4 of his caps are blue. thes rest of his cap are red. how many of ron's caps are red