The slope is 2 and the y-intercept is -2
<span>If you are given a convex polygon with </span>

<span> sides and </span>

<span> is the sum of the measures of the interior angles then </span>

<span>.
So, </span>

.


The polygon has
11 sides.
Let y = ax²+bx+c then substitute all of orders. we'll be doing equations system.

Ok we are at this.
Substitute c = 3 into equation 1 and equation 3.


then addition and subtract for a-b = 3 and a+b = -1

Therefore a = -2, substitute a = -2 in a-b+c=0 or a+b+c=2 but i'm doing a-b+c=0 one.

Therefore b = 1, substitute both a, b and c into y=ax²+bx+c as we get,
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1 square kilometer is equal to 100 square hectometers :)