14 Questions Identify general characteristics of quadratic functions Interpret key features of graphs and formulas of quadratic functions. Based on Common Core standard F-IF.B.4 and TEKS Algebra 1 standard 7A A quadratic function always has a maximum or minimum value. True False The graph of a quadratic function never has a line of symmetry. sometimes has a line of symmetry. always has a line of symmetry. The graph of a quadratic function is a line. parabola. circle. ellipse. … and 11 more awesome questions! Check them out by clicking “Play”.