Answer:
D . 0.4
Explanation:
let the height be the y coordinate
let the width be the x coordinate
first point :
width/x : 0.5
height/y : 0.8
according to the formula given:
height = constant/width :
so:
0.8 = constant/0.5
constant = 0.4
next point:
x : 0.8
y : 0.5
0.5 = constant/0.8
constant = 0.4
for all of the points, the constant is 0.4