The graph of f(x) = 2x3 – 19x2 + 57x – 54 is shown below. how many roots of f(x) are rational numbers

The root of the function is such point for which

The attached graph of the function   shows, that the graph of the function intersects the x-axis in three points (2,0), (3,0) and (4.5,0).

This means that for

Thus, x=2, x=3 and x=4.5 are rational roots of the polynomial function f(x).

three rational roots.

1 mph

step-by-step explanation:

if the question is asking how much does she drive per mile then,

13 / 13 = 1 mph