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)