Find the intersection of the given intervals.(-3, 9] ? (-9, 2]
A. [-9, 9]
B. [-3, 2]
C. (-9, -3]
D. (-3, 2)
Answer: B
Mathematics
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Given the function, find the indicated value.f(x) = 8 - 5x2; f(-4)
A. 48 B. -72 C. 28 D. 88
Mathematics
Determine the phase shift of the function.y = 
sin (?x + 3)
A. - 
units to the left
B. 
units to the left
C. 
units to the right
D. 3 units to the left
Mathematics
Solve the problem.A function f(x) is of the form f(x) = a(x - h)2 + k. What can you say about the values of a, h, and k if the graph of f(x) lies entirely below the x-axis?
A. a, h, and k must all be negative B. a and k must be negative C. h and k must be negative D. a and h must be negative
Mathematics
Answer the equation:
(a) Graph: 
(b) Find 
(c) Find f (0) .
(d) Is f continuous at 0 ?
Mathematics