Let f (x )equals left brace Start 2 By 1 Matrix 1st Row 1st Column x if x greater than or equals 2 2nd Row 1st Column 2 if x less than 2 EndMatrixf(x)= x if x≥2 2 if x<2 . a. Find ​f(11​), ​f(22​), and ​f(99​)