Answer:
f(x)=x-2
Find the domain by finding where the function is defined. The range is the set of values that correspond with the domain.
Domain: (−∞,∞),x|x ∈R}(-∞,∞),x ∈R
Range: (−∞,∞),y∈R
g(x)=x^2-3x+2
Domain: (−∞,∞),x ∈R(-∞,∞),x
Range: [−1/4,∞),{y∣y≥−1/4}