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zamorano5912
27.09.2019 •
Biology
What are ways in which social expectations are different amongst young people and senior citizens in your culture or family? how is each person in the relationship expected to act? what is common for one generation but not the other?
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Ответ:
The x-intercepts are at (4,0), (2,0), and (1,0) and the y-intercept is at (0,-8).
Step-by-step explanation:
The cubic function is f(x) = x³ - 7x² + 14x - 8 (1)
Now, one factor of the function is (x - 4).
Then the other factors will be obtained as
x³ - 7x² + 14x - 8
= x³ - 4x² - 3x² + 12x + 2x - 8
= x²(x - 4) - 3x(x - 4) + 2(x - 4)
= (x - 4)(x² - 3x + 2)
= (x - 4)(x - 1)(x - 2)
Therefore, f(x) = (x - 4)(x - 1)(x - 2)
Now, for x-intercept f(x) = 0 = (x - 4)(x - 1)(x - 2)
⇒ x = 4 or x = 2 or x = 1
Therefore, the x-intercepts are at (4,0), (2,0), and (1,0).
Again, for y-intercept, x = 0, then from equation (1) we get,
f(0) = - 8
So, y-intercept is at (0,-8). (Answer)