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13.12.2019 •
Mathematics
One factor of the function f(x) = x3 − 8x2 + 17x − 10 is (x − 5). describe how to find the x-intercepts and the y-intercept of the graph of f(x) without using technology. show your work and include all intercepts in your answer.
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Ответ:
x-intercepts: (1,0), (2,0), (5,0)
y-intercepts: (0,-10)
Step-by-step explanation:
One factor of the function
is ![(x-5).](/tpl/images/0417/8344/18820.png)
Factor the polynomial in the following way:
Now factor the quadratic in brackets:
Hence,
The x-intercepts are points at which y = 0, so
The y-intercepts are points at which x = 0, so
Ответ:
= 3-5+9-6
= (9+3) -5 -6
= 12-5-6
= 1.
The final answer is 1.
Hope this helps~