Ccozakos424go Ccozakos424go Mathematics Answered Use a graphing calculator to sketch the graph of the quadratic equation, and then state the domain and range. y = x² + 2x+2 a. D: all real numbers R: (≤2) b. D: all real numbers R: (≤1) C. D: (x21) R: (≥2) d. D: all real numbers R: (21)