Graph the parabola. State the vertex of the parabola.y = -x2 - 2x - 6
A. vertex (1, 5)
B. vertex (-1, -7)
C. vertex (-1, 5)
D. vertex (-1, -5)
Answer: D
Mathematics
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Multiply.(-9)(-16)
A. 1440 B. 153 C. -144 D. 144
Mathematics
Solve the problem.The table represents a linear function. Find the slope and y-intercept of the line and use your answers to write an equation for f(x). 
A. f(x) = -4.5x + 1.6 B. f(x) = 4.5x - 1.6 C. f(x) = -1.6x + 4.5 D. f(x) = 1.6x + 4.5
Mathematics
Match the function f with its graph.f(x) = log1/2 (x)
A. 
B. 
C. 
D. 
Mathematics
What point on the surface z is closest to the origin?
?
?
Hint : Minimize the square of the distance from 
to the origin.
?
A. 
B. 
and 
C. 
D. 
E. 
and 
Mathematics