Quadratic in Form Polynomials — Cumulative exam Answers
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Using the quadratic formula to solve 11x2 – 4x = 1, what are the values of x?
A
StartFraction 2 Over 11 EndFraction plus-or-minus StartFraction StartRoot 15 EndRoot Over 11 EndFraction
B
StartFraction 2 Over 11 EndFraction plus-or-minus StartFraction 2 StartRoot 15 EndRoot Over 11 EndFraction
C
StartFraction 2 Over 11 EndFraction plus-or-minus StartFraction StartRoot 7 EndRoot Over 11 EndFraction
D
StartFraction 2 Over 11 EndFraction plus-or-minus StartFraction StartRoot 7 EndRoot i Over 11 EndFraction
23
Given that (3, 2, –6) and (–2, 5, 1) are solutions of two equations in a system of three linear equations, which of the following is true about the system?
A
The system can only be consistent and independent.B
The system can be either inconsistent and independent or consistent and dependent.C
The system can be either inconsistent and dependent or consistent and independent.D
The system can only be inconsistent and dependent.24
If (x + k) is a factor of f(x), which of the following must be true?
A
f(k) = 0B
f(–k) = 0C
A root of f(x) is x = k.D
A y intercept of f(x) is x = –k.
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