Determine whether a linear or quadratic function would be a more appropriate model for the graphed data. If linear, tell whether the slope should be positive or negative. If quadratic, decide whether the coefficient 
of x2 should be positive or negative. CRIME STATISTICS 
Years since 1990
A. Quadratic; negative
B. Linear; negative
C. Linear; positive
D. Quadratic; positive
Answer: C
Mathematics
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Solve the problem.Find an equation for the level curve of the function f(x, y) = 
dt that passes through the point 
.
A. y2 - x2 = 24 B. y2 - x2 = 26 C. y2 - x2 = -24 D. y2 + x2 = 26
Mathematics
Find the integral.
A. - 
sec4 (x - 3) + C
B. 
sec3 (x - 3) + C
C. 
sec4 (3x - 3) + C
D. 
sec4 (x - 3) + C
Mathematics
The question(s) that follow refer to the problem of finding the minimum spanning tree for the weighted network shown below.
Using Kruskal's algorithm, which edge should we choose last?
A. DC B. AE C. GH D. AB E. none of these
Mathematics
Factor the polynomial completely.15y2 - 19y + 6
A. (3y + 2)(5y + 3) B. (3y - 2)(5y - 3) C. (15y + 2)(y + 3) D. prime
Mathematics