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There are points of inflexion at x = +/- 6.53...
Can we say it is impossible to find the slope, and why??
I think that is because that is an undulation point, therefore it is not an inflection point.
A QUESTION: CAN A GRAPH contain MORE than one INFLECTION point? and WHY?
see the red dot. Notice the change in the second derivative at the inflection point.
Where are they shown? If you want a numeric answer, I will need more.
Consider the function f(x)= 2x^4 - 512x² - 7x - 28. The function is plotted below. The tangents to the curve at the points A and C are shown. Find the value of the tangent at the point B if possible.