# polynomial functioms-check

posted by .

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

## Similar Questions

1. ### algebra

could you help me with the following,I don't understand. 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 - …

4. ### ap algebra

can you check my answers please? Find the zeros for the polynomial function and give the multiplicity for each zero. State whether the graph crosses the x-axis or touches the x-axis and turns around, at each zero. f(x) = 2(x - 2)(x

can you check my answers please? Find the zeros for the polynomial function and give the multiplicity for each zero. State whether the graph crosses the x-axis or touches the x-axis and turns around, at each zero. f(x) = 2(x - 2)(x
6. ### College Algebra

1.The graph of y = - 1/2 |x - 5| - 3 can be obtained from the graph of y = |x| by which transformations?
7. ### algebra

find the following for the function f(x)= (x+5)^2(x-1)^2 a) find the x and y intercepts for the polynomial function f b) determine whether the graph of f crosses or touches the x axis at each x intercept C) put all information together …
8. ### college algebra

find the zero's for the following polynomial and give the multiplicity for each zero. For each zero, state whether the graph crosses the x-axis or touches the x-axis and turns around. f(x)=5(x-2)(x+4)^3 I am having trouble with this. …
9. ### Algebra

Find the following function f(x)=(x+3)^2(x-1)^2 (a)Find the x and y intercept of the polynomial function f. (b) Determine whether the graph of the f crosses or touches the x-axis at each x intercept. (c) Put all the information to …
10. ### pre - CALCULUS

Complete the following: (a) Use the Leading Coefficient Test to determine the graph's end behavior. (b) Find the x-intercepts. State whether the graph crosses the x-axis or touches the x-axis and turns around at each intercept. Show …

More Similar Questions