CAN SOMEONE PLEASE HELP ME

Find an equation (in term of x) of line through the points (-1,3) and (1,4)

James was playing a game with his friends. he won 35 points. then he lost 15, lost 40 and won 55. how did he come out

Astudent draws two parabolas both parabolas cross the x axis at (-4,0) and (6,0) the y intercept of the first parabolas is (0,-12). the y intercept of the second parabola is (0,-24) what is the positive difference between the a values for the two functions that describe the parabolas