The graph of a quadratic function is given. Find the standard form of the function
A. f(x) = -(x - 2)2 - 3
B. f(x) = -(x + 2)2 + 3
C. f(x) = (x + 2)2 - 3
D. f(x) = -(x + 2)2 - 3
Answer: D
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Translate to an equation and solve.8
less than twice n is 
.
A. n - 8
= 2
; 9
B. 2n - 8
= 
; - 3
C. 2n - 8
= 
; 4
D. n - 8
= 2
; 18
Multiply.(13.3)(-9.3)
A. -12.369 B. -123.69 C. -1.2369 D. -1236.9
Find the focus and directrix of the parabola with the given equation.y2 = -28x
A. Focus: (0, 7), directrix: y = -7 B. Focus: (0, -7), directrix: y = 7 C. Focus: (7, 0), directrix: x = -7 D. Focus: (-7, 0), directrix: x = 7
Solve the problem.Suppose that the population of a certain type of insect in a region near the equator is given by 
where t represents the time in days. Find the rate of change of the population when 
A. 2.3 insects B. 4.6 insects C. 8.3 insects D. 3.1 insects