The slope-intercept form of a line:

m - slope
b - y-intercept
Convert 2x + 3y = -6 to the slope-intercet form:
<em>subtract 2x from both sides</em>
<em>divide both sides by 3</em>

Let
and 

We have 
Therefore

We have the equation of a line:

Put the coordinates of the point (0, 0) to the equation:


Answer: 
28.13÷450= .0625111
.0625111×100= 6.25111%
48 degrees, anything opposite of a degree on the same 2 infinite lines will always be the degree.
Let the width be w, then the length is 2w - 2.5.
Perimeter = 2(length + width)
40.6 = 2(2w - 2.5 + w) = 2(3w - 2.5)
3w - 2.5 = 40.6/2 = 20.3
3w = 20.3 + 2.5 = 22.8
w = 22.8/3 = 7.6
Therefore, width is 7.6 cm.