is the power produced directly proportional to the wind speed.
a proportional function can be described as y = a * x
so (0, 0) is on the graph, not (3, 0).
0 / 3 = 0
3800/6 = 633.33
7600/9 = 844.44
13600/12 = 1133.33
the quotient y/x should be always the same.
call segment cd's length x. because dc and ab are parallel, angle acd and cab, so triangles adc and abc are similar and we can set up the equation x / ac = ac / ab, or x / 5 = 5 / 4 and x = 25/4.
option 4 : 16+24i
given a circle has a diameter with end points at(15+25i) and (-25-17i)
centre would be the mid point of these two points
out of given four points to find which point lies on the circle
if a point lies on the circle then it would have distance from centre equal to radius.
radius = distance between two given points/2
let us calculate distance form each point.
i)-15+2i: distance from -5+4i= 10.19
ii) 0+0i : distance from -5+4i = 6.40
iii) 15+17i : distance from -5+4i = 23.85
iv) 16+24i: distance from -5+4i= 29
hence only 4th point lies on the circle