12. Find the domain and range of the rational function f(x) 25+2 D -R a. D(-∞, -22) U (-22, ∞);R(-∞, 1) U (1,∞). b. D(-∞, -25) U (-25, ∞);R(-∞, -25) U (-25, ∞). c. D(-∞, -25) U (-25, ∞);R(-∞, 1) U (1, ∞). d. D(-∞, -22) U (-25, ∞);R(-∞, -25) U (-22,∞). 13.Find the domain and range of the rational function f(x)=x²-x-6 x+2 D___ R____ a.D(-∞,-2) U(-2,∞); R(-∞,-2) U(-2,∞) b.D(-∞,-2) U(-2,∞); R(-∞,-3) U(-3,∞) c.D(-∞,-2) U(-2,∞); R(-∞,3) U(3,∞) d.D(-∞,-2) U(-2,∞); R(-∞,-5) U(-5,∞) 14.Find the domain of the rational function f(x)=3x²-8x-3 2x²+7x-4 D___ a.D(-∞,-4) U(-4,2) U(2,∞) b.D(-∞,-4) U(-4,½) U(½,∞) c.D(-∞,-½) U(-½,4) U(4,∞) d.D(-∞,4) U(-4,∞)
