1-8 is simple. Just subtract 8 from 1. so 1-8 = -7
We are given vertices of a rectangle (0, −4) , (−1, −3) , (2, 0) , and (3, −1).
Length is the distance between (0, −4) and (−1, −3) points.
Width is distance between (−1, −3) and (2, 0) points.
<u>Computing length:</u>



<u>Computing Width :</u>



<h3>
Area of the rectangle = Length × Width </h3>
=
.
3) 1 1/2 gallons for 3/4 of the room
Answer; 2 gallons for 4/4 of the room
4) 12 1/2 gallons drives 325 miles
Answer; 1 gallon drives 26 miles
The last step of an equation whose solutions are x=-10 and x=-5 is:
(x+10)(x+5)=0
We need to add some previous steps, which make the equation an absolute value equation.
A way to do this, is writing |(x+10)(x+5)|=0,
the only solutions are still x=-10 and x=-5
Answer: |(x+10)(x+5)|=0