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Hatshy [7]
3 years ago
12

How many x intercepts appear on the graph of this polynomial function? f(x)=x^4-5x^2 1 x intercept 2 x intercepts 3 x intercepts

4 x intercepts
Mathematics
2 answers:
saveliy_v [14]3 years ago
8 0

Answer:

3

Step-by-step explanation:

its is 3

Bumek [7]3 years ago
5 0
You can find the number of x intercepts by setting f(x) equal to zero giving you 0=x^4-5x^2. You can factor out an x^2 and divide on both sides (when you divide 0 by anything it is still zero so the x^2 disappears), and you are left with 0=x^2-5, which you can solve easily giving you x=+/- sqrt(5). However, the original equation also has an x intercept at (0,0) which you can see by plugging 0 in for x. So the grand total of x intercepts is 3!
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