tolong jawabbb

<p>RUMUS DILATASI&nbsp;</p><p>&nbsp; 1. Pusat (0,0) ---&gt; &nbsp;(x',y')= k(x,y)</p><p>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; k itu skala&nbsp;</p><p>&nbsp; &nbsp;</p><p>&nbsp; 2. Pusat (a,b)---&gt; (x',y')=k(x-a,y-b)+(a,b)</p><p>&nbsp;</p><p>&nbsp;</p><p>JAWABAN&nbsp;</p><p>1. &nbsp;A) pusat (0,0) , k=2</p><p>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; y=x²-14</p><p>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;(x',y')= 2(x,y)</p><p>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; = &nbsp;2x,2y</p><p>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;disama denganin sendiri sendiri ( x sama x , y sama y)</p><p>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;(x'=2x, y'=2y)</p><p>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;karna yg kita cari itu x dan y bukan x' dan y' jadi kita pidah ruasin biar x= dan y=</p><p>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;(x=x'/2 &nbsp;, y=y'/2)</p><p>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;habis itu masukin x sama y nya ke persamaan biar jadi bayangan</p><p>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;y=x²-14</p><p>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;y'/2= ( x'/2 )²-14</p><p>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;y'/2= x'²/4 -14</p><p>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;biar per nya ilang semua dikali 4</p><p>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;2y'=x'²-14</p><p>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;kan dari awal soalnya y = &nbsp;, jadi jawabanya juga harus y= , 2 dipindah ruaskan</p><p>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;y'= (x'²-14)/2</p><p>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;nah tinggal hilangin aksennya trus selese</p><p>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; y= (x²-14)/2&nbsp;</p><p>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;</p><p>&nbsp;</p>