Use the quadratic formula to solve the equation.(x - 5)(x - 1) = 8
A. {-3 - 2
, -3 + 2
}
B. {3 - 
, 3 + 
}
C. {-3 - 
, -3 + 
}
D. {3 - 2
, 3 + 2
}
Answer: D
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Give an appropriate answer.Given the function f(x, y, z) and the positive number ? as in the formal definition of a limit, find a positive number ? as in the definition that insures 
< ?.f(x, y, z) = x + y + z ; ? = 0.12
What will be an ideal response?
Identify the equation as either an identity or not.cot2x = (csc x - 1)(csc x + 1)
A. Not an identity B. Identity
Provide an appropriate response.h(x) = -2x + 5a. Is the point (2, 1) on the graph of the function?b. If x = 3, what is h(x)? What point is on the graph of the function?c. If h(x) = 5, what is x? What point is on the graph of h?d. What is the zero of h?
A. a. yes
b. h(3) = -3; (3, -3)
c. x = -2; (-2, 5)
d. 5
B. a. yes
b. h(3) = -1; (3, -1)
c. x = 0; (0, 5)
d. 5
C. a. yes
b. h(3) = -1; (3, -1)
c. x = 0; (0, 5)
d. 
D. a. no
b. h(3) = -1; (3, -1)
c. x = -2; (-2, 5)
d. 
Evaluate the expression without using a calculator.log8819
A. 8 B. 19 C. log819 D. 27