strate line thru 2 points...(-2,22) & (5,85)
deltax=5-(-2)=7
deltay=85 -22)=63
slope=deltay / deltax=63/7....9
y=9x+konst
projekt line from x=-2 tu x=0, this deltax=2
deltay=slope*deltax=9*2=18
y at x=0=22+18=40,,,krates kall this the "y-intersept"
formula: y=9x+40