Monday
September 15, 2014

Homework Help: polynomial functioms-check

Posted by Jesse on Monday, October 15, 2007 at 4:13pm.

Can you please check my work and answers.

Find the x-intercepts of the polynomial function. State whether the graph crosses the x-axis, or touches the x-axis and turns around, at each intercept.

1.f(x) = (x + 1)(x - 3)(x - 1)^2
-I got -1 crosses the x-axis, 3 crosses the x-axis, 1 touches the x-axis and turns around

5.f(x) = x^4 - 16x^2
- I got x^2(x^2-16)
(x+4)(x-4)

0 touches the x-axis and turns around; 4 crosses the x-axis; -4 crosses the x-axis

7.x^4 + 5x^3 - 84x^2 = 0

I got 0 touches the x-axis and turns around;-12 crosses the x-axis; 7 crosses the x-axis

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

Algebra-check my answers - can you check my answers please? Find the zeros for ...
ap algebra - can you check my answers please? Find the zeros for the polynomial ...
algebra - could you help me with the following,I dont understand. Find the x-...
ap algebra - Can you please help me with these problems I dont understand them? ...
ap algebra - Can you please help me with these problems I dont understand them? ...
college algebra - find the zero's for the following polynomial and give the ...
algebra - find the following for the function f(x)= (x+5)^2(x-1)^2 a) find the ...
College Algebra - 1.The graph of y = - 1/2 |x - 5| - 3 can be obtained from the ...
check my precalc - #1. Make up a polynomial that has the following ...
Writing equation of a polynomial function - Can you help me with the following ...

Search
Members