Does anyone know how to do this? I’m really confused on this question. Also please explain or show work on a piece of paper to get marked =]

What statement is true? 2x^2-9x+2=-1

Aprobability experiment is conducted in which the sample space of the experiment is s={7,8,9,10,11,12,13,14,15,16,17,18 }, event f={7,8,9,10,11,12}, and event g={11,12,13,14}. assume that each outcome is equally likely. list the outcomes in f or g. find p(f or g) by counting the number of outcomes in f or g. determine p(f or g) using the general addition rule.

Which equation represents a line that passes through the point (9, -4) and has a slope of 3/5?