The length and breadth of a rectangular field are 50 m and 40 m respectively. find the distance travelled by a boy in walking along the boundary in
i. one complete round ii. 5 complete rounds

Abit confused about what you mean, but i think you might be referring to slope intercept form: y = mx + bin that case b, or the y intercept is already given.(0,-1)find the slope by using the formulay2 - y1/x2 - x1the final slope will be 4/2, equivalent to 2.now your equation should look like thisy = 4/2x -1sorry if this didn’t you out!

Ithink it’s b, hope this .