Answer:
symmetric property
Step-by-step explanation:
The <em>symmetric property</em> is the one that tells you A=B means also B=A.
The obfuscating factor in this question is the renaming of angle SZW to angle WZS. Both names refer to the same angle.
The sequence is times 2 minus 2
3 x 2 = 6 - 2 = 4
10 x 2 = 20
20 - 2 = 18
Y<-1/2x
Y> or = -1
Because if you plug in a number then it's the only one that fits
If <em>y</em> = <em>x</em> and <em>y</em> = <em>z</em>, then by substitution we can say <em>x</em> = <em>z</em>.
In this case, substitution gives us
-1/2 <em>x</em> - 2 = -3/2 <em>x</em> + 2
and we can solve for <em>x</em> :
3/2 <em>x</em> - 1/2 <em>x</em> = 2 + 2
<em>x</em> = 4
then solve for <em>y</em> :
<em>y</em> = -1/2 <em>x</em> - 2
<em>y</em> = -1/2 * 4 - 2
<em>y</em> = -2 - 2
<em>y</em> = -4
