Suppose f(x) = y2 and g(x) = 5x? Which statement best compares the graph of g(x) with the graph of f(x)?

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%)