Now lets see what the actual values are. Use calculator to fill the data table
x = -2
2
x=-3
x = -4
x=-5
x=-6
x=-7
x=-15
f(x)=√x
NA
NA NA
f(x) = x² (-2)=4
f(x)=2*
f(x)=3*
What stands out from those results (or lack thereof)? What do you think causes that?