Find the vertex for the parabola whose equation is given.y = -x2 + 2x - 8
A. (2, -8)
B. (-1, -9)
C. (1, -7)
D. (-1, -11)
Answer: C
Mathematics
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Write the number in words.5168
A. Fifty-one thousand, sixty-eight B. Five hundred thousand, one hundred sixty-eight C. Five million, one thousand, sixty-eight D. Five thousand, one hundred sixty-eight
Mathematics
Decide whether the given number is a solution to the equation preceding it.7x - 3x = 4x; 630
A. Yes B. No
Mathematics
Solve and check. Identify any extraneous solutions.
+ 
= 
A. 4, (-2 is extraneous) B. -4, (2 is extraneous) C. -2, 4 D. -4, 2
Mathematics
Solve by the quadratic formula.6k2 - 11k - 2 = 0
A. {-6, 2}
B. 
C. 
D. 
Mathematics