Which is an expression in point-slope of the line that passes through the points (4,5) and (-3, -1)? A. Y + 3 = 7/6(x + 1)
B. Y - 1 = 6/7(x - 3)
C. Y + 1 = 6/5(x + 3)
D. Y + 1 = 6/7(x + 3)

since the airplane is moving with constant speed then the distance travelled can be calculated by x=u*t

in km/h would be:

x=640*3.5=2.240 km

in m/s would be:

u=640 km/h= 640.000 m/h =640.000/ 3600 m/s =177.8 m/s

t= 3.5 h= 3.5 * 3600 s=12.600 s

then x=u*t= 177.8*12.600= 2.240.280 m

the correct is answer is a 9-sided polygon!

step-by-step :