Determine whether the relation is a function.{(-6, 6), (-6, 8), (1, 1), (6, 9), (8, 4)}
A. Not a function
B. Function
Answer: A
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Sketch the surface z = f(x,y).f(x, y) = 1 - x - 2y
A. 
B. 
C. 
D. 
Factor as completely as possible. If unfactorable, indicate that the polynomial is prime.12x2 + 4x - 16
A. (x - 4)(12x + 4) B. (4x + 4)(3x - 4) C. (3x - 4)(4x + 4) D. (4x - 4)(3x + 4)
Provide an appropriate response.Fill in the blank to complete the statement. In order for a matrix to have a determinant, it must be 
matrix.
A. an augmented B. a square C. a rectangular D. a minor
Solve the problem.The number of dislocated electric impulses per cubic inch in a transformer increases when lightning strikes by D(x) = 2700(5)x, where x is the time in milliseconds of the lightning strike. Find the number of dislocated impulses at x = 0 and x = 2.
A. 2700; 27,000 B. 2700; 67,500 C. 13,500; 67,500 D. 2700; 8,437,500