Identify the critical points and determine the local extreme values. yequalsStartSet Start 2 By 3 Matrix 1st Row 1st Column negative x squared minus 4 x plus 2 comma 2nd Column 3rd Column x less than or equals 1 2nd Row 1st Column negative x squared plus 5 x minus 7 comma 2nd Column 3rd Column x greater than 1 EndMatrix
