math college readiness

Question

the square difference of six and y,divided by seven is less than -2

Answer 1

(6-y)^2/7<2

y^2 -12y +36 < 14

y-6 </> +/-sqr14

y< 6+sqr14 and y>6-sqr14

y is in the interval (6-sqr14, 6+sqr14) or about (2.26, 9.74)