Lol im going to fail someone pls help

Which of the following is not a subset of {1,2,3}?

Solve each quadratic equation by factoring and using the zero product property. 14x - 49 = x^2

(03.03 mc) choose the graph below that correctly represents the equation 2x + 4y = 24. (5 points) select one: a. line through the points 0 comma 6 and 12 comma 0 b. line through the points 0 comma negative 6 and 12 comma 0 c. line through the points 0 comma negative 12 and 6 comma 0 d. line through the points 0 comma 12 and 6 comma 0