arl2267
- 15
- 0
Consider the function:
f(x)= x7-4x5-3x4+4x3+12x2-12/x7
a) Graph the function on [-6,6] by [-6,6]. From your graph, estimate how many x-intercepts the function has and what values they are.
b) Now graph the function on [-1.5, -1.4] by [-10-4, 10-4] and on [1.4, 1.5] by [-10-5, 10-5] From your graphs, estimate how many x-intercepts the function has and what their values are.
c)From your results in part a and b what advice would you give a friend using a graphing calculator to find x-intercepts?
I'm not even sure where to start with this problem. Just looking at part b gives me a headache and I have no idea what I'm doing. Any help would be greatly appreciated. Thanks.
f(x)= x7-4x5-3x4+4x3+12x2-12/x7
a) Graph the function on [-6,6] by [-6,6]. From your graph, estimate how many x-intercepts the function has and what values they are.
b) Now graph the function on [-1.5, -1.4] by [-10-4, 10-4] and on [1.4, 1.5] by [-10-5, 10-5] From your graphs, estimate how many x-intercepts the function has and what their values are.
c)From your results in part a and b what advice would you give a friend using a graphing calculator to find x-intercepts?
I'm not even sure where to start with this problem. Just looking at part b gives me a headache and I have no idea what I'm doing. Any help would be greatly appreciated. Thanks.