1) Which of the following functions best represents the graph?
A) f(x) = (x − 2)(x − 3)(x + 2)
B) f(x) = (x + 2)(x + 3)(x + 12)
C) f(x) = (x + 2)(x + 3)(x − 2)
D) f(x) = (x − 2)(x − 3)(x − 12)
(See Picture #1)
The graph below plots the values of y for different values of x:
(See Picture 2)
What does a correlation coefficient of 0.9 say about this graph?
A) x and y have a strong, positive correlation
B) x and y have a weak, positive correlation
C) x and y have a strong, negative correlation
D) x and y have a weak, negative correlation