Answer: there are 3 root of f(x) which are rational numbers (2,0), (3,0) and (4.5,0)
Step-by-step explanation:
Rational numbers are those that can be written in the form of p/q: q should not be equal to zero
since, the graph cuts x-axis at three points but rational are two
all integers are rational numbers
attached is the graph please have a look at it