Please help 30 points
1 answer:
Answer: On interval f(x) is increasing =
On interval f(x) is decreasing =
Step-by-step explanation:
The given function:
The graph of the function is attached below
In graph , function is increasing till point (-2,4) or x=-2 and then it is decreasing.
So f(x) is increasing in and decreasing in
So, On interval f(x) is increasing =
On interval f(x) is decreasing =
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Question:
Give all the x and y intercept of the function
Answer:
The x intercepts are x = 5 and x = -4
The y intercept is at y = -2
Step-by-step explanation:
Factorizing the numerator of the expression we find the x intercepts as follows;
Therefore, the x intercept are
x = 5 and x = -4
To find the y intercept, we put x = 0 to get y = -2
Therefore, the y intercept is at y = -2
Factorizing the denominator we find the values for which the equation is undefined
2·x³ + 2·x² - 34·x + 30 = 2·(x-1)·(x-3)·(x+5) which gives
x = 1, 3 and -5.