(1, 2) (1, 3) (1, 4) (1, 5) (2, 3) (2,4) (2,5) (3, 4) (3, 5) (4,5)
Answer:
5.6
Step-by-step explanation:
Sheryl got the following scores on her spelling tests.
95, 89, 99, 85, 82
Mean = sum of all observations/ Number of observations
Sum of all observations 
Number of observations = 5
So,
Mean 
Let M denotes the mean
Mean absolute deviation 
Put 
So,
Mean absolute deviation 
D) y=-2x^2-x is quadratic, when graphed it will create a parabola.
your Answer is going to be 13/25
General equation of the line is
y = mx + c
c = -3
m = 3
so the equation is
y = 3x - 3