Answer:
the equation is not correct....
well, it should look sth. like (x+or- number)^2=number
Jill had a total score of 40 on 13 quizzes, so her average was
40/13 ≈ 3.08
_____
1 quiz @ 1 = total of 1
3 quizzes @ 2 = total of 6
4 quizzes @ 3 = total of 12
4 quizzes @ 4 = total of 16
1 quiz @ 5 = total of 5
total score = 1 + 6 + 12 + 16 + 5 = 40
total quizzes = 1 + 3 + 4 + 4 + 1 = 13
The answer is 2^(9/10). I did it assuming with the ^5 you mean the 5th root of 4
That is a parabola.
All domain of a parabola are, (-∞,∞).
The range would be, (-∞, 0]
