Graph the ellipse and label the center.
+ 
= 1
A. C(-9, 12)
B. C(-9, -12)
C. C(9, 12)
D. C(9, -12)
Answer: D
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Graph the rational function. Include the graphs and equations of the asymptotes.f(x) = 
A. asymptotes: x = -1, y = -1
B. asymptotes: x = 1, y = 1
C. asymptotes: x = -1, y = 1
D. asymptotes: x = 1, y = -1
Solve the linear equation graphically.-x + 1 = -1Values of -x + 1
A. -1 B. 0 C. 2 D. 3
Find the unit vector in the direction of the given vector. Write your answer in the indicated form.Let u = 
. Find the unit vector in the direction of u, and write your answer as a linear combination of the standard unit vectors i and j.
A. 
B. 
i - 
j
C. 
i - 
j
D. 
i - 
j
Solve the problem.Find the equation of the line s with y-intercept (0, 3) and slope parallel to the slope of line t, 
A. y = - 
x + 3
B. y = 
x - 3
C. y = 
x + 3
D. y = 
x + 3