Question

Which diagram shows the most useful positioning of a rectangle in the first quadrant of a coordinate plane? Answers are in the pictures.

Answer 1

use this one and that will be useful

me thinks you do not have to deal with all the other stuff. you jus tuse "a" for the height and "b" with the width

Answer 2

Answer:

Figure C having points (1,1), (b,1), (b,a) and (1,a) will be the most useful.

Step-by-step explanation:

We are required to position a rectangle in the first quadrant in the most useful way possible.

As we can see that,

In figure A, the line joining (1,0) and (b,0) lies on the x-axis.

In figure B, the points (0,a) and (a,0) lies on the x-axis.

In figure D, the line joining (0,0) with (b,0) and (0,0) with (0,a) lies on the x-axis.

But, we need the figure to be placed inside the Ist quadrant.

So, all above options are discarded.

Hence, option C is correct.