2- 1 and 3/8 i don't know but i think it is 1 and 3/8 lol

Using the graph below, select all statements that are true. a. f(0.6)=0 b. f(-3.2)=-3 c. f(5.1)=5 d. this is the graph of the greatest integer function. e. this graph is one-to-one.

The parabola x= √y-9 opens: a.)up b.)down c.)right d.)left

To which sets of numbers does -12 belong? choose all answers that are correct. a) natural numbers b) integers c) real numbers d) irrational numbers