Decide whether the problem is an equation or an expression.x + y = 8
A. Equation
B. Expression
Answer: A
Mathematics
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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. root function; (-?, 18]
B. root function; (-?, 3
]
C. root function; (-?, 18) ? (18, ?)
D. root function; (-?, 3
) ? (3
, ?)
Mathematics
Graph the one-to-one function as a solid curve and its inverse as a dashed curve on the same axes.f(x) = 5x
A. 
B. 
C. 
D. 
Mathematics
Write the rate as a fraction in simplest form.A biker travels 518 miles in 35 hours.
A. 
B. 
C. 
D. 
Mathematics
Factor the polynomial completely. If a polynomial cannot be factored, state that it is irreducible.147x4 - 75x2
A. irreducible B. 3x2(7x + 5)(7x - 5) C. 3x2(7x - 5)2 D. 3(7x2 + 5)(7x2 - 5)
Mathematics