Help! Pls help me on numbers 5 and 6.

Complete the statements about the system of linear equation respresented by the tables the equation respented the left table is

Use the quadratic formula to solve the equation. if necessary, round to the nearest hundredth. x^2 - 23 = 10x a. -1.93, 11.93 b. 1.93, -11.93 c. 1.93, 11.93 d. -1.93, -11.93

Which of the following graphs could represent a quartic function?