Scale factor is always (new/original)
so it depends which rectangle came first. if it started as large and was dilated to the smaller one, then the ratio is (.5/2.5) which simplifies to 1/5 or 0.2.
Answer:
View Image.
Step-by-step explanation:
The solution is where both graph cross each other.
Is the solution, the point (x, y) that they gave you, the same point as where the two graph cross each other?
If yes then the solution is correct.
If no then the solution is wrong.
Replace x with the x value solve to get the y value.
see attached picture for answers.
The equation of proportional relationship is of the form:

where m is the slope.
Drawing it is fairly easy, you start from the origin (0, 0) and you draw a diagonal staight line. The inclination of the line depends on the value of m. See picture attached.