Might be terribly wrong since it's been a while that I've done fractions, but I got -11/20. Hope this helps!!!
A, x-intercept is when y=0, so in this case when y=0, the equation becomes 5x=0. Therefore, x must equal 0 for 5x=0. so y=0 and x=0 so the answer it (0,0), which is A.
In order to maintain the similarity, both x and y has to be amplified by the same ratio
So A will be correct