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harmonypowers7656
31.07.2019 •
Mathematics
Determine the end behavior of each function. (a) f(x) = 14 + 2x2 − 13x3 − x4 f(x) → as x → −∞ f
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Ответ:
Thus:
f(x) = 14 + 2x^2 − 13x^3 − x^4
Then, the limit of f(x) → as x → −∞
is negative infinity. the x^4 term dominates all the other terms, and because x^4 is negative, the final limit will be negative (negative infinity).
Ответ:
And since the highest power is 4 this function behaves like a quadratic (U-shaped).
If the leading coefficient of the function is positive the graph looks like U but if it is negative it looks like ∩.
It is negative so the graph is heading towards -∞ on both sides.
Ответ:
Step-by-step explanation:
Given:
The function is,![y=x^{2}+2](/tpl/images/0363/9810/b6875.png)
The given function represent a parabola and can be expressed in vertex form as:
The vertex form of a parabola is
, where,
is the vertex.
So, the vertex is
.
In order to graph the given parabola, we find some points on it.
Let![x=-2,y=(-2)^{2}+2=4+2=6](/tpl/images/0363/9810/f8ccb.png)
So, the points are
.
Mark these points on the graph and join them using a smooth curve.
The graph is shown below.
From the graph, we conclude that at the vertex
, it is minimum.