Sketch the graph of the parabola.y = - 
(x + 4)2 - 3
A. 
B. 
C. 
D. 
Answer: C
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Find the distance between the two points on the coordinate plane. If necessary, round the answer to the nearest thousandth.(-5, 6) and (-10, 18)
A. 3
units ? 18.735 units
B. 13 units
C. 3
units ? 28.302 units
D. 
units ? 10.909 units
Solve.Bob owns a watch repair shop. He has found that the cost of operating his shop is given by 
where c is cost and x is the number of watches repaired. How many watches must he repair to have the lowest cost?
A. 48 watches B. 20 watches C. 29 watches D. 58 watches
?Determine the open intervals on which the graph of 
is concave downward or concave upward.
?
A. ?concave downward on 
B. ?concave downward on 
; concave upward on 
C. ?concave upward on 
; concave downward on 
D. ??concave downward on 
; ?concave upward on 
E. ?concave upward on 
; concave downward on 
Solve the problem.Michael's bank contains only nickels, dimes, and quarters. There are 61 coins in all, valued at $5.10. The number of nickels is 7 short of being three times the sum of the number of dimes and quarters together. How many dimes are in the bank?
A. 9 B. 44 C. 14 D. 8