Amazing, James is not best triple jump on record. That distinction goes to Santjie, a South African frog who jumped 33 ft, 5 1/2 in. If Santjie's path in the first jump is estimated by s=1/200x^2+ 7/10x. (where x is horizontal distance covered in inches), find coordinated of vertex of Santjie path?
i. 70, 24 1/2
ii. 75, 24 2/3
iii. 70, 24
iv. 74 23 1/3