In which set of points is y a function of x? A
B
{(2, 4), (4, 16), (5, 25), (6, 36)}
{(4, 2), (4, 2), (16,4), (16,4)}
{(2, 1), (2,0), (1, 1), (3, 1)}
{(2,3), (1, 3), (0, 3), (0, 2)}
С
D

The graph of the function f(x) = (x + 2)(x + 6) is shown below. which statement about the function is true? the function is positive for all real values of x where x > –4. the function is negative for all real values of x where –6 < x < –2. the function is positive for all real values of x where x < –6 or x > –3. the function is negative for all real values of x where x < –2.