Graphing in Standard Form

graph y=x2-6x+8

step 1 identify the coefficients of the function a=1 b=-6 c=8

step 2 the vertex to find the x coorinate is x= b/2(a)= +6/(2)=3 they = (3)2-6(3)+8=-1 plot the vertex

step 3 draw aos x=3

step 4 identif the y interccep(0,8) and relfect the point in the aos to plot (6,8)

step 5 evaluate the function for x=1 plot the plot (1,3) and its reflects (5,3)

step 6 draw a parabola through the plot points