Find y '.y = (4x - 3)(3x + 1)
A. 12x - 5
B. 24x - 5
C. 24x - 2.5
D. 24x - 13
Answer: B
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Solve.Bob owns a watch repair shop. He has found that the cost of operating his shop is given by 
where c is the cost in dollars, and x is the number of watches repaired. How many watches must he repair to have the lowest cost?
A. 89 watches B. 33 watches C. 44 watches D. 30 watches
Determine the number by which both sides of the equation must be multiplied or divided, as specified, to obtain just x on the left side.0.2x = 3; multiplied
A. - 
B. 3
C. 0.2
D. 5
Using the horizontal-line test, determine whether the function is one-to-one.
A. one-to-one B. not one-to-one
Find: a. The center and radius of the circle. b. The x- and y-intercepts of the graph of the circle.x2 + y2 - 4x + 4y - 1 = 0
A. a. center = (-2, -2); radius = 3
b. (2 + 
, 0), (0, -2 + 
)
B. a. center = (-2, 2); radius = 9
b. (2 + 
, 0), (0, -2 + 
)
C. a. center = (2, -2); radius = 3
b. (-2 + 
, 0), (-2 - 
, 0), (0, 2 + 
), (0, 2 - 
)
D. a. center = (2, -2); radius = 3
b. (2 + 
, 0), (2 - 
, 0), (0, -2 + 
), (0, -2 - 
)