Determine whether the equation defines y as a function of x. y = 6x2 - 5x + 7
A. function
B. not a function
Answer: A
Mathematics
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Find the limit.
x ln y
A. 16 B. ln (2) - 4 C. ln 16 D. No limit
Mathematics
Evaluate the expression.
+ 
A. -57 B. -23 C. -197 D. 63
Mathematics
The Richter scale converts seismographic readings into numbers for measuring the magnitude of an earthquake according to this function M(x) = log 
, where x0 = 10-3.What is the magnitude of an earthquake whose seismographic reading is 7.6 millimeters at a distance of 100 kilometers from its epicenter?Round the answer to four decimal places.
A. 3.8808 B. 0.20281 C. 2.0281 D. 0.38808
Mathematics
Answer the question about the given function.Given the function f(x) = -4x2 - 8x - 4, list the y-intercept, if there is one, of the graph of f.
A. -16 B. -12 C. -4 D. 0
Mathematics