mariahcutea mariahcutea
  • 21-11-2016
  • Mathematics
contestada

Which is a rational function?

A. y=x^2-x+4
B. 2/x
C. x-3^3/x^2
D. x-5/2

...?

Respuesta :

Greenleafable
Greenleafable Greenleafable
  • 22-11-2016
A rational function is basically a function which can be defined by a rational fraction, which means that A is definitely not correct.
I'd say C. x-3^3/x^2 is the correct answer because of all these cubes and squares.
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camilabelenortpeiguu camilabelenortpeiguu
  • 14-11-2018

The correct answer is: y=2/x . A rational function is the quotient of two polynomial  functions. Notice that (x - 5)/2 can be simplified into a single polynomial function,  so it is not a rational function.

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