Match the given graph with its equation.
A. 
+ 
= 1
B. 
- 
= 1
C. 
+ 
= 1
D. 
- 
= 1
Answer: D
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Solve the problem.Consider the sample space S = {o1, o2, o3, o4}. Suppose you are given that o2 is three times as likely as o1, that o3 is three times as likely as o2, and that o4 is three times as likely as o3. Find Pr(o1).
A. 
B. 
C. 
D. 
E. none of these
The graph of a function f is given. Use the graph to answer the question.How often does the line y = -50 intersect the graph?
A. once B. twice C. three times D. does not intersect
Find a set of parametric equations for the given Cartesian equation.y = 3x2 + 6
A. x = t2; y = 3t + 6; 0 ? t < ?
B. x = t; y = 3t2 + 6; 0 ? t < ?
C. x = 
; y = 3t + 6; t ? 0
D. y = t; x = 3t2 + 6; 0 ? t < ?
Solve the variation problem.Suppose y varies directly with the square of x, and y = 512 when x = 8. Find y when x = 5.
A. y = 40 B. y = 320 C. y = 64 D. y = 200