For the given quadratic equation, determine whether the parabola opens up or down, find the vertex of the parabola, and find the axis of symmetry.y = 2x2 - 3x - 5
A. down; 
; x = 
B. up; 
; x = - 
C. up; 
; x = 
D. up; 
; x = 2
Answer: C
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Find the missing length in the right triangle. If necessary, round to the nearest tenth.
20 in.
A. 544 in. B. 23.3 in. C. 16 in. D. 272 in.
Look for a pattern and then predict the general term, or nth term, an, of the sequence.
, 
, 
, 3, 
, . . .
A. an = 
B. an = 
C. an = 
D. an = 
Find the product.(x + 3)3
A. x3 + 9x2 + 27x + 27 B. x3 + 9x2 + 9x + 27 C. x3 + 9x2 + 3x + 27 D. x3 + 3x2 + 3x + 27
Solve the problem.The perimeter of a rectangle is the sum of the lengths of all four sides. A rectangle has a perimeter of 
. Let W be the width, L be the length, and P be the perimeter, all units in yards.a. Sketch three possible rectangles of perimeter 36 yards.b. Which of the symbols W, L, and P are variables?c. Which of the symbols W, L, and P are constants?
What will be an ideal response?