nikfrago nikfrago 20-10-2022 Mathematics Answered use your graphing calculator to check whether r= -9 and r= -11 are solutions to the equation r^2 + 11r + 28 = 10 y1= y2= proposed solutions | x | y1 | y2 -9 | ? | ? -11 | ? |? r= -9 is/is not a solution? r= -11 is/is not a solution?
