X^ {2}4x=y Swap sides so that all variable terms are on the left hand side x^ {2}4x\left (2\right)^ {2}=y\left (2\right)^ {2} Divide 4, the coefficient of the x term, by 2 to get 2 Then add the square of 2 to both sides of the equation This step makes the left hand side of the equation aIn order to determine when the graph was increasing, it must have a positive value of slope at that position So a positive slope goes up to the right By simply looking, there are two answers (04, 04) and (16, infinity)X 5 2 y 9 2 = 81; Systems Of Equations With Substitution 9x 3y 15 Y X 5 Video Khan Academy Y-4=1/3(x-2) graph