Hi i was wondering if anyone could help me with this calculus optimization problem i know how to do most optimization problems but this one stumps me.

Some lines through the point (2,1) cut off a triangle in the 1st quadrant. Find the x - intercept of the line with the property that the sum of its x and y intercepts is a minimum.

*What i know so far is that the equation of any line is y = mx + b

*The x intercept would be when y = 0 so 0 = mx + b

*The y intercept would be when x = 0 so y = b essentially

*I am not sure if this would be true but the equation of any line on that point would be 1 = 2m + b

I am not sure what to do from this point.

Help would be greatly appreciated