Find the vertex of the function given below.
y= x2 - 4x+1
A. (1,5)
B. (2,-3)
C. (-2, 13)
D. (4,1)

If rt is greater than ba, which statement must be true ?

Juanita wade's new car has an msrp of $28,902.11 including title and processing fees. the premier package which includes surround sound and dvd player costs three times the amount of the in-style package which includes leather seats and select wheels. the total cost of her new car was $34,290.08 which included the 6.5% sales tax. find the cost of the premier package to the nearest cent.

Why is causation so much more difficult to prove than correlation?