List the key features of the quadratic function y = –x2 + 4x Question 6 options:

A)

x-intercepts: (1,0) and (3,0), y-intercept: (0,–3), vertex: (–1,2)

B)

x-intercepts: (1,0) and (3,0), y-intercept: (0,–3), vertex: (2,1)

C)

x-intercepts: (1,0) and (3,0), y-intercept: (0,3), vertex: (2,–1)

D)

x-intercepts: (–1,0) and (–3,0), y-intercept: (0,–3), vertex: (2,–1)

Asix-sided die of unknown bias is rolled 20 times, and the number 3 comes up 6 times. in the next three rounds (the die is rolled 20 times in each round), the number 3 comes up 6 times, 5 times, and 7 times. the experimental probability of rolling a 3 is 10 %, which is approximately % more than its theoretical probability. (round off your answers to the nearest integer.)