# A tangent is drawn to the graph pf y = x^3 -3x^2 + 6x -5 at its only infection point. The equation of this inflectional tangent is?

A. y = 3x -1

B. y= 3x - 4

C. y= 3x +4

D. y= -4

E. y=3x-2

### 1 Answer

Relevance

- TonyLv 65 years agoBest Answer
If a graph has an inflection point, the slope changes from + to - at that point. (or vice versa). As such, the slope of a tangent line at that point must be zero.

NOW, which of those answers are of the form:

y = 0x + b

or more commonly

y = b

always,

tony

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