Question

Question
4
Question
5
+
+
+
A)
Multiply.
. If your coefficient is negative, you must put in a negative sign. If it ispositive, do not put in the positive sign, because it is already in the answer.
(12 points)
(2x − 5) (x2 − 7x + 10)
x3 x2 x
A)
Use the graph to answer the question.
Which of the following options describes the end behavior of this graph.
(5 points)
As x → −∞, f (x) → ∞ and as x → ∞, f (x) → ∞
As x → −∞, f (x) → ∞and as x → ∞, f (x) → −∞
As x → −∞, f (x) → −∞ and as x → ∞, f (x) → −∞
As x → −∞, f (x) → −∞ and as x → ∞, f (x) → ∞

Answer 1

1) Multiply:
(2x − 5)(x^2 − 7x + 10) = 2x^3 − 19x^2 + 55x − 50

2) End behavior:
Since the leading term is 2x^3 (odd degree, positive coefficient),
as x → −∞, f(x) → −∞ and as x → ∞, f(x) → ∞.