Find the focus and directrix of the parabola.- 
x2 = y
A. F: (0, -3); D: y = -3
B. F: (0, -3); D: y = 3
C. F: (0, 3); D: y = -3
D. F: (-6, 0); D: x = 3
Answer: B
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Evaluate the function for the given values of a and b. Then use the intermediate value theorem to determine which of the statements below is true.a = 0, b = 5f(x) = x3 + 3x2 + 6x + 4
A. f(0) and f(5) have opposite signs, therefore f does not have a real zero between 0 and 5. B. f(0) and f(5) have the same sign, therefore the intermediate value theorem cannot be used to determine whether f has a real zero between 0 and 5. C. f(0) and f(5) have opposite signs, therefore f has a real zero between 0 and 5. D. f(0) and f(5) have the same sign, therefore f does not have a real zero between 0 and 5.
Determine whether the graph is the graph of a function.
A. Function B. Not a function
Insert < or > to form a true statement.
A. > B. <
Subtract. Simplify, if possible.
- 
A. 
B. 
C. 12
D. 