Respuesta :

we will select each options and then we verify it

(a)

since, this is greatest integer function

so, it's value will be equal to lesser integer value

so,

[tex] f(4.9)=4 [/tex]

so, this is FALSE

(b)

since, this is greatest integer function

so, it's value will be equal to lesser integer value

so,

[tex] f(-3.4)=-4 [/tex]

so, this is TRUE

(C)

This is FALSE

(D)

This is TRUE

(E)

Since, it does not satisfy horizontal line test

so, it is not one to one

so, this is FALSE