Draw a complete graph for the rule y=x*x+2x-1

Which of the following of the following sets of side lengths could not form a triangle?

Which graph represents the following piecewise defined function?

Miguel’s teacher asks him to color 4/8 of his grid. he must use 3 colors: red, blue, and green. there must be more green sections than red sections. how can miguel color all the sections of his grid to follow all the rules