College Algebra Homework Assignment

Use direct substitution to determine whether 2, 3, -1 and 0 are zeros
f (m) = z‘ – 62:3 + 82:2 + 6x – 9.

2. Consider the function
f(:c) = -1’3 + 2:1:2 + 4:1: – 8.
(a) State the leading term and describe the end behavior of the graph. i
(b) Determine the zeros of f (:13) _, v

(c) Use the x intercepts to divide the axis into intervals and choose a test pi
each interval to determine the Sign of all function values in that interval
((1) Determine the y i1‘1tercept, f (0) 1 u
(9) Carefully sketch the graph using the information above and any meg
information such as turning points. 7, 7:33gfz
3; Use synthetic division to verify that .r = -»:1 IS a zero of 7:?3;
77 , 77 g(.I‘) = 31″” + 111″ – 2:11 +’ 5:; *#:i
aegifietermmea 9971;119:1133} funetien of degree 3 eéif;ligne@fi;WW-?’