Which statement describes the graph of this polynomial function?

f (x) = x superscript 5 baseline minus 6 x superscript 4 baseline + 9 x cubed
the graph crosses the x-axis at x = 0 and touches the x-axis at x = 3.
the graph touches the x-axis at x = 0 and crosses the x-axis at x = 3.
the graph crosses the x-axis at x = 0 and touches the x-axis at x = –3.
the graph touches the x-axis at x = 0 and crosses the x-axis at x = –3.

Good evening ,

f (x) = x⁵ - 6x⁴ + 9x³

The graph crosses the x-axis at x = 0 and touches the x-axis at x = 3.

Step-by-step explanation:

Look at the photo below for the details

by the way f(0)=0 and f(3)=0.

:)

reduce the friction between its moving parts

step-by-step explanation:

in fact, by reducing the friction between the moving parts of the machine, it is possible to reduce the energy wasted due to this friction; therefore, more input energy is converted into useful work, and this will improve the efficiency of the machine.

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step-by-step explanation: