State whether the relation is a function.This graph shows the speed of a car, in miles per hour (mph), at various times after a driver applies the brakes. 
A. It is a function.
B. It is not a function.
Answer: A
Mathematics
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Evaluate 
for the given x0 and function f.f(x) = 3
for x0 = 4
A. 
B. 6
C. 3
D. Does not exist
Mathematics
Round off the approximate number as indicated.0.9999 2 significant digits
A. 1.0 B. 1.00 C. 0.99 D. 1
Mathematics
Use the simple interest formula to determine the missing value. Round dollar amounts to the nearest cent and percents to the nearest hundredth when necessaryp = $4163, r = ?, t = 213 days, i = $123.16
A. r = 20% B. r = 5% C. r = 9.4% D. r = 0.05%
Mathematics
Use a vertical shift to graph the function.y = 1 + cos x
A. 
B. 
C. 
D. 
Mathematics