Which of the following functions matches this graph? On a coordinate plane, a parabola opens up and goes through (negative 1.1, 0), has a vertex at (0, negative 4), and goes through (1, 0).

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%)