Solve the system of equations using Cramer's Rule if it is applicable. If Cramer's Rule is not applicable, say so.
A. x = 
, y = - 
; 
B. x = 
, y = 
; 
C. x = - 
, y = 
; 
D. x = 
, y = - 
; 
Answer: D
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Insert < or > to form a true statement.
A. < B. >
Solve the problem.A venture capital firm invested $2,000,000 in a new company in 1995. In 1999, they sold their stake in the company for $10,500,000. What was the average annual rate of return on their investment?
Fill in the blank(s) with the appropriate word(s).
Find the vertex, focus, and directrix of the parabola.x2 = 16y
A. vertex: (0, 0)
focus: (0, 4)
directrix: y = -4
B. vertex: (0, 0)
focus: (-4, 0)
directrix: x = 4
C. vertex: (0, 0)
focus: (0, -4)
directrix: y = 4
D. vertex: (0, 0)
focus: (4, 0)
directrix: x = -4
Find a linear function whose graph has the given slope and y-intercept.Slope - 
, y-intercept 
A. f(x) = 
x - 
B. f(x) = - 
x + 
C. f(x) = 
x + 
D. f(x) = - 
x - 