100 pts plz hlp this graph shows a proportional relationship. the pic is a graph with a line running through coordinates (0,0) and coordinates (fraction 2 over 3, fraction 3 over 4) what is the constant of proportionality? enter your answer as a ratio in simplified form in the box.

y:x = 9:8

Step-by-step explanation:

a line running through coordinates (0,0) and coordinates (fraction 2 over 3, fraction 3 over 4)

so its constant of proportion = (y2-y1)/(x2-x1)

=(3/4 - 0) / ((2/3 - 0)

=(3/4) / (2/3)

=9/8

so y:x = 9:8

i think the answer is b.

step-by-step explanation:

not 100% sure though.

for the friend request.

when a figure, such as triangle (xyz) is reflected over the line y = x to create x'y'z' the x-coordinates and y-coordinates of the original image (pre-image) will be reversed for the image. (e.g., (x, y) > (y, x)) this means that the pre-image position of the x- and y-coordinates switch places which in turn provides a mirror like image of the original xyz.  

i notice that when i draw a line segment from x to x', that the points are parallel from each other -- they are exactly across from each other and do not intersect with any other points.  

yes, think i would see the same characteristic if you drew the line segment connecting y with the reflecting line and then y' with the reflecting line because of the essence of reflections. because it is a mirror image, each point was effected the same way which leads me to conclude that they same would apply to y and y'.