Question 602234
first find the slope of7x-9y=4
rearrange in the form of y=mx+b ,m=slope
          9y=7x-4
          y=7/9x-4/9
 slope=m=7/9
thus y-y1=slope(x-x1) is the formula to find equation of a line containing a point (x1,y1) and have a slope m
 here (x1,y1)=(7,2)
    and slope=7/9
  y-2=7/9(x-7)
     9y-18=7x-49
     9y=7x-49+18
     9y=7x-31
  there for 9y=7x-31 is the required equation line