Differentiate.
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What does the abbreviation stand for?cs.
A. crates B. centimeters C. cartons D. case
Find an equation for the hyperbola described.center at (7, 1); focus at (1, 1); vertex at (6, 1)
A. (x - 1)2 - 
= 1
B. (x - 7)2 - 
= 1
C. 
- (y - 7)2 = 1
D. 
- (y - 1)2 = 1
?Determine the open intervals on which the graph of 
is concave downward or concave upward.
A. ?concave upward on 
; concave downward on 
B. ?concave downward on 
C. ?concave upward on
D. ?concave downward on ; ?concave upward
E. ??concave upward on 
; concave downward on 
Solve the problem.Managers rate employees according to job performance and attitude. The results for several randomly selected employees are given below. 
Find the regression line y = mx + b.
A. y = 1.35x + 2.81 B. y = 2.02x - 47.3 C. y = - 0.669x + 92.3 D. y = 1.02x + 11.7