I think none of these are right. It's Y=-5/3x +4/3
Answer:
300%
Step-by-step explanation:
Given

Required
Find the percentage change in y when x decreased by 50%
First, convert to equation

Where k is the constant of proportionality
When x decreased by 50%



Expand

Substitute
for y



The percentage change is then calculated as:





<em>The percentage in y is 300%</em>
Answer:
B (6,0) because when graphed it would make a 90° angle
They are pairs on the corridinant