Find an equation for the parabola described.Vertex at (-3, 4); directrix x = 1
A. y = - 
(x + 3)2 + 4
B. x = - 
(y + 3)2 + 4
C. x = - 
(y - 4)2 - 3
D. y = - 
(x - 4)2 - 3
Answer: C
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Provide an appropriate response.
A connecting rod 28 cm long joins a crank 18 cm long to form a triangle with a third, imaginary line. If the crank and the imaginary line form an angle of 145°, find the angle formed by the connecting rod and the imaginary line. 
A. 2.5° B. 17.5° C. 13.4° D. 21.6°
Solve the inequality. Graph the solution set and write it in interval notation.|5k - 7| - 3 < 1
A. 
B. 
C. 
? 
D. 
Solve.A card is drawn from a well-shuffled deck of 52 cards. What is the probability that the card will have a value of 3 and be a face card?
A. 
B. 
C. 0
D. 
Solve the problem using your calculator.A study was conducted to compare the average time spent in the lab each week versus course grade for computer students. The results are recorded in the table below. Use linear regression to find a linear function that predicts a student's course grade as a function of the number of hours spent in lab. Number of hours spent in lab Grade (percent) 10 96 11 51 16 62 9 58 7 89 15 81 16 46 10 51
A. y = 88.6 - 1.86x B. y = 1.86 + 88.6x C. y = 44.3 + 0.930x D. y = 0.930 + 44.3x