Simplify. Be sure to rationalize all denominators. Assume that all variables represent positive real numbers.
A. 
B. 7
C. 43x
D. 
Answer: A
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Write the polynomial in standard form. Then find its degree and leading coefficient.4x3 + 3x4 - 8x5 + 12
A. -8x5 + 3x4 + 4x3 + 12, degree: 13, leading coefficient: -8 B. 4x3 + 3x4 - 8x5 + 12, degree: 5, leading coefficient: 4 C. -8x5 + 3x4 + 4x3 + 12, degree: 5, leading coefficient: -8 D. 4x3 + 3x4 - 8x5 + 12, degree: 12, leading coefficient: 4
Decide whether the given set of numbers is a commutative group under the given operation.Even integers; addition
A. Yes B. No
Classify the function as a polynomial function, rational function, or root function, and then find the domain. Write the domain in interval notation.f(x) = 
A. rational function; (-?, -8) ? (-8, ?) B. rational function; (-?, -8) ? (-8, 2) ? (2, ?) C. rational function; (-?, 2) ? (2, ?) D. rational function; (-?, ?)
Given the graph of the functions 
and 
. Determine the color of the graph that corresponds to 
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?
?
Select the correct answer.
?
A. Blue
B. Red