DO THEM FOR BRAIN Qs 5,6,7 pls

PLS DONT MAKE ME REPORT HAHAHA >:D

Which of the following is true for the relation f(x)=2x^2+1

Find the nonpermissible replacement for binthis expression. b2/5b +5

Determine the domain and range of the given function. the domain is all real numbers all real numbers greater than or equal to –2{x: x = –2, –1, 0, 1, 2}{y: y = –2, –1, 0, 1, 2}. the range is all real numbers all real numbers greater than or equal to –2{x: x = –2, –1, 0, 1, 2}{y: y = –2, –1, 0, 1, 2}.