Answer:
f(x)=5
Step-by-step explanation:
1.) plug in -3 into the equation (should look like)
[tex](-3)^{2} -4[/tex]
2.) solve the equation with the help of PEMDAS and FLTR
[tex](-3)^2= 9[/tex] so...
[tex]9-4=5[/tex]