Sketch the graph of the equation. Identify the vertex and the intercepts.y = -4x2 + 40x - 101
A. Opens: Up;
Vertex: (5, -1)
x-intercepts: none
y-intercept: (0, -101)
B. Opens: Up;
Vertex (-5, -1)
x-intercepts: none
y-intercept 
C. Opens: Up;
Vertex (5, -1)
x-intercepts: none
y-intercept: 
D. Opens: Up;
Vertex (-5, -1)
x-intercepts: none
y-intercept (0, -101)
Answer: A
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Write the complex number in polar form. Express the argument in degrees, rounded to the nearest tenth, if necessary.
+ i
A. 4(cos 30° + i sin 30°) B. 4(cos 60° + i sin 60°) C. 2(cos 60° + i sin 60°) D. 2(cos 30° + i sin 30°)
Solve the system using the inverse of the coefficient matrix of the equivalent matrix equation.-4x - 3y - z = -35 x - 6y + 6z = -28-8x + y + z = -5
A. (-2, 8, 4) B. (2, 3, 8) C. (2, 8, 3) D. No solution
Graph the function using a graphing utility and the Change-of-Base Formula.y = log2(x + 4)
A. 
B. 
C. 
D. 
John and Rosamond want to retire in 8 years and can save $230 every three months. They plan to deposit the money at the end of each quarter into an account paying 7.42% compounded quarterly. How much will they have at the end of 8 years? ? Please round the answer to the nearest cent. ? $ __________
Fill in the blank(s) with the appropriate word(s).