So when you add mixed numbers, you must convert it into fractions. The four would become part of the fraction and be 43/10 and the six becomes part of the fraction which is 69/10. You can find this by multiplying 4 by the denominator and then adding it to the numerator (4 Times 10 = 40 + 3 = 43/10) and same for the other one. The answer is 112/10, simplify to 11 1/5.
Range is output for given input
domain is D={-3,0,5}
input -3,0 and 5 for x
f(-3)=(-3)^2-6(-3)+4
f(-3)=9+18+4
f(-3)=31
F(0)=(0)^2-6(0)+4
f(0)=0-0+4
f(0)=4
f(5)=(5)^2-6(5)+4
f(5)=25-30+4
f(5)=-1
Domain={-3,0,5}
Range={31,4,-1}
40,978 would be the answer hope it helped!