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502 Chapter 5 Quadratic Functions23. Domain = (−∞, ∞),Range = (−∞, 7]27. Domain = (−∞, ∞),Range = (−∞, 40]x=−420y50y(4,40)(−4,7)((8+ √ 28)/(−2),0) ((8− √ 28)/(−2),0)x10((−16+ √ (0,8) (8,8)320)/(−4),0)((−16− √ 320)/(−4),0)x20(−8,−9)(0,−9)x=4f(x)=−(x+4) 2 +7f(x)=−2(x−4) 2 +4025. Domain = (−∞, ∞),Range = [−10, ∞)50yf(x)=2(x−5) 2 −10(0,40) (10,40)29. Domain = (−∞, ∞),Range = [4, ∞)y20 f(x)=(x+2) 2 +4((20− √ 80)/4,0) ((20+ √ 80)/4,0)x20(5,−10)(−4,8)(0,8)(−3,5)(−1,5)(−2,4)x10x=5x=−2Version: Fall 2007