Originally Posted by
william 1. which of the following statements are true for f(x)=-2(x-1)(x-2)(x+3)
i) as x-> infinity, f(x)-> -infinity
ii) as x-> infinity, f(x)-> infinity
iii) as x-> -infinity, f(x)-> -infinity
iv) as x-> -infinity,f(x)-> infinity
a) i and iv
b) i and ii
c) i
d) i and iii
my choice: d)
2. which statement is true
a) a degree 4 function may have no real zero
b) a degree 4 function may have 1 or 2 real zeros
c) a degree 4 function may have 3 or 4 real zeros
d) all of the above
my choice: c)