Determine whether the relation defines y as a function of x. Give the domain.5x = 13 - 2y
A. Function; domain: all integers
B. Not a function; domain: all whole numbers
C. Not a function; domain: (-?, ?)
D. Function; domain: (-?, ?)
Answer: D
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Solve.Important news is said to diffuse through an adult population of fixed size L at a time rate proportional to the number of people who have not heard the news. Eight days after a scandal in the mayor's office was reported, a poll showed that half of the people had heard about it. How long will it take for 94% of the people to hear about it?
A. 34 days B. 29 days C. 35 days D. 32 days
Find the domain of the rational function.f(x) = 
A. domain of f: (-?, ?) B. domain of f: (-?, 2) ? (2, ?) C. domain of f: (-?, 0) ? (0, ?) D. domain of f: (-?, -2) ? (-2, ?)
Determine the equation of the line described. Put answer in the slope-intercept form, if possible.Through (-9, 0), parallel to 5x + 6y = -33
A. y = - 
x + 0
B. y = - 
x - 
C. y = 
x - 
D. y = 
x + 
Graph the function.f(x) = 5(x + 4) + 3
A. 
B. 
C. 
D. 