Answer:
Step-by-step explanation:
Given the equation of the circle: 
We wish to express it in a Standard form:
We begin by re-arranging:
Next, divide the coefficient of x by 2, square it and add it to both sides.
Do the same for y.
Next, we factorize
This is the standard form.
Answer:
5, -⅓
Step-by-step explanation:
x = 2:
4x + 3y = 23
3y = 23 - 4(2)
3y = 15
y = 5
x = 6:
4x + 3y = 23
3y = 23 - 4(6)
3y = -1
y = -⅓
<span>The problem says that Donovan is using similar rectangles, so you can calculate the length of the second rectangle, by using the similarity concept.
We have that the first rectangle </span>is 2 inches wide and 6 inches long, and the second rectangle must has<span> 5 inches wide. Then:
2/5=6/L (L: </span>the length of the second rectangle).
<span> 2L=6x5
2L=30
L=30/2
L=15 inches
H</span><span>ow long must the second rectangle be?
</span><span>
The answer is: The second rectangle must be 15 inches long.
</span>
(0,2) because following the formula x,y, the 2 is the y, while the 0 is the x.
