Use the graph of the relation to identify the domain and range.y = - 
x
A. domain: (-?, ?)
range: (-?, ?)
B. domain: (-?, ?)
range: 
C. domain: (-?, 0)
range: (-?, ?)
D. domain: 
range: (-?, ?)
Answer: A
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Find the interval of convergence of the series.
A. -2 ? x ? 8 B. -2 < x < 8 C. 1 < x < 5 D. 2 ? x < 4
Use the distributive property to multiply. Then, if possible, simplify the resulting expression.4(a + b)
A. 4ab B. 8ab C. 4a + 4b D. 4a + b
The terminal side of an angle in standard position passes through the given point. Write all posssible degree measures of this angle.(-1, 1)
A. 225° + n ? 360°, n any integer B. 315° + n ? 360°, n any integer C. 135° + n ? 360°, n any integer D. 45° + n ? 360°, n any integer
The loudness L(x), measured in decibels, of a sound of intensity x, measured in watts per square meter, is defined as 
watt per square meter is the least intense sound that a human ear can detect. Determine the loudness, in decibels, of the sound.You have two friends, Jim and Amy. Jim always yells when he speaks, and Amy always whispers. The loudness of Jim's voice is 120 decibels, and the loudness of Amy's voice is 20 decibels. Determine how many times as intense Jim's voice is as compared at Amy's.
A. Jim's voice is 100.1 times as intense as Amy's. B. Jim's voice is 100 times as intense as Amy's. C. Jim's voice is 1000 times as intense as Amy's. D. Jim's voice is 1010 times as intense as Amy's.