For Rashmi good service and cost are also important factors. She would not like to spend more than Rs 24000 for purchasing the AC. Given that the comparative rates of the models are:

AC MODEL

Cost

Special Offers (if any)

Alpha

Rs 22785

Additional Rs 3500 as Annual maintenance charges

Vidyut

Rs 24425

5% discount

Samurai

Rs. 23590

Rs 500 extra for installation

Zenith

Rs.24725

5% discount

Versa

Rs. 29900

No installation charges

Choose the AC model which Rashmi will prefer to purchase in this case?

a. Samurai

b. Vidyut

c. Zenith

d. Versa​

-3

step-by-step explanation:

a drawing really does here:

so i draw the horizontal line y=2 and the vertical line x=-2 at this intersection i put b (this is where my right angle is going to be).   so point b is at (-2,2).   point a is 5 units long and is also on y=2 so this point has to be (3,2) or (-7,2) -doesn't matter i will go with (3,2).

now we know c is at (-2,y) we don't know the y yet bet we know that c is on x=-2.

we have the area of the triangle is .5bh=12.5

we know the base length is 5 (ab)

we have the height is (2-y) if you look at your

plug in

.5(5)(2-y)=12.5

solve for y to get the y-coordinate for c

2.5(2-y)=12.5

divide both sides by 2.5 giving:

2-y=5

now subtract 2 on both sides

-y=3

y=-3