Determine the domain of the rational function. f(x) = 
A. {x | x ? -8, x ? 3}
B. {x | x ? -9, x ? 9}
C. {x | x ? 0}
D. {x | x ? -8, x ? -3}
Answer: A
Mathematics
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Find the x-intercepts for the parabola whose equation is given. If the x-intercepts are irrational, round your answers to the nearest tenth.y = -x2 + 9x - 20
A. x-intercepts (4, 0) and (5, 0) B. x-intercepts (4, 0) and (-5, 0) C. x-intercepts (-4, 0) and (-5, 0) D. No x-intercepts
Mathematics
Find the indicated partial sum for the given sequence.s10, 79, 144, 209, 274, . . .
A. -2135 B. 3320 C. 3715 D. -3320
Mathematics
State whether the function is linear or quadratic.f(x) = - 4x2
A. Linear B. Quadratic
Mathematics
Solve.
= 
A. y = 
, or y = -
B. y = 10x + C
C. y = 
D. y = 
, or y = -
Mathematics