How do you use end behavior, zeros, y intercepts to sketch the graph of #f(x)=x^3+11x^2+35x+32#?
See explanation
End behavior: the x^3 term is dominant, which means that as x goes out to increasing values of positive x, (or to increasingly NEGATIVE values of negative x), f(x) increases towards positive infinity (or negative infinity), respectively.
y intercept: set x = 0, then f(x) is trivially read off as 32.
Now, this question is under "precalculus", so what follows may be a bit above & beyond. But:
If you've had some calculus, you can take the second derivative of f(x) and do some more analysis, but this may not be totally necessary here. So, to graph this function:
- plot points (-5,7), (-2.3333, -2.47777) (call it 2.5) and (0, 32)
- draw a nice, swoopy curve coming up from negative infinity on the left, topping out at -5,7, then down to -2.333, -2.5, then up to (0, 32), and then on up to positive infinity on the right.
Or, since we live in 2017, you can let your browser graph it:
graph{x^3 + 11x^2 + 35x + 32 [-22.37, 17.63, -8.72, 11.28]}
GOOD LUCK
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When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.
When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.
When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.
When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.
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