Determine whether the parabola opens upward or downward.y = -3x2 - 2x - 1
A. upward
B. downward
Answer: B
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Solve the problem.A land developer wants to develop 8 acres of land. Each lot in the development is to be 
of an acre. How many lots will the land developer have in the 8 acres?
A. 
lot
B. 1
lots
C. 2
lot(s)
D. 28 lots
Collect like terms and then arrange in descending order.5 + 7x5 - 8x2 + 3x5 + 3x2 - 8
A. 8x5 + 10x2 - 16 B. 10x5 - 5x2 - 3 C. 10 - 5x5 - 3x2 D. 2x7
Solve the system of equations by the substitution method. Check your solutions. For any dependent equations, write your answer in the ordered pair form.
A. {(-6, 8)} B. {(6, 8)} C. {(6, -8)} D. {(-6, -8)}
Write the standard form of the equation of the circle with radius r and center (h, k).r = 2; (h, k) = (0, 0)
A. x2 + y2 = 2 B. (x - 2)2 + (y - 2)2 = 2 C. x2 + y2 = 4 D. (x - 2)2 + (y - 2)2 = 4