Which of the following points could you remove so that the resulting graph is the graph of a function?

A. (-2, -3)

B. (-1, -5)

C. (0, 5)

D. (1, -3)

Astudent must have an average on five test that is greater than it equal to 80% but less than 90% to receive a final grade of b. devon's greades on the first four test were 78% 62% 91% and 80% what range if grades on the fifth test would give him a b in the course? ( assuming the highest grade is 100%)