Determine the domain of 
.
A. all real numbers except x = 0 and x = 6
B. all real numbers
C. all real numbers except x = 6
D. all real numbers except x = -6 and x = -1
E. all real numbers except x = -1, x = 0 and x = 6
Answer: A
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Use graphical methods to find values of x and y satisfying the given conditions. Find the value of the maximum or minimum.Find x ? 0 and y ? 0 such that2x + 6y ? 30 4x + 2y ? 20 and z = 0.18x + 0.12y is minimized.
A. Minimum of 1.86 when x = 9 and y = 2 B. Minimum of 1.08 when x = 4 and y = 3 C. Minimum of 1.02 when x = 3 and y = 4 D. Minimum of 1.2 when x = 4 and y = 4
Sketch the line with the given slope that passes through the indicated point.Slope = 0; line passes through the point (8, -4)
A. 
B. 
C. 
D. 
Find the critical number(s), if any, of the function 
Select the correct answer.
a. ±5 b. -3 c. 3 d.± ?5
Solve.x2 + y2 + 11y = 0x2 + y2 = 7x
A. (0,1) 
B. (1,0) 
C. (0,0) 
D. (1, -1) 