i can help if you have the picture
Y = mx + c, where m is your gradient and c is your y intercept.
If the line is perpendicular to the line y = 3x - 5, the line's gradient = -(1/3) as when it comes to perpendicular bisector, m1/m2 = -1
y = -(1/3)x + C
To find C sub in x=2 and y=2 as it goes through (2,2)
2 = -(1/3)2 + C
2 = -(2/3) + C
2 + 2/3 = C
C = 8/3
There your equation of a line is
y = -(1/3)x + 8/3
The answer is -2,686
let me tell you why !
the answer would be negative, since the parachutist is descending. so 158 × 17 = 2,686
make that negative.
you get -2,686 !!!! hope that helps :)))
