Q:

NEED HELP FINDING SOME COORDINATES

Accepted Solution

A:
Answer:The image of [tex](7,2)[/tex] is [tex](2,12)[/tex]Step-by-step explanation:First you need to find the translation vector.Let the translation vector be [tex]u=(a,b)[/tex]. Then the translation rule is [tex](x,y)\to (x+a,y+b)[/tex].From the equation, the image of [tex]P(2,-4)[/tex] is Β [tex]P'(-3,6)[/tex].When we apply this rule using the translation vector, we get[tex]P(2,-4)\to P'(2+a,-4+b)[/tex]Now we have [tex]P'(2+a,-4+b)=P'(-3,6)[/tex]We can therefore equate corresponding coordinates [tex]2+a=-3[/tex] and [tex]-4+b=6[/tex]This implies that:[tex]a=-3-2[/tex] and [tex]b=6+4[/tex][tex]a=-5[/tex] and [tex]b=10[/tex]Hence our translation vector is [tex]u=(-5,10)[/tex]The translation rule now becomes:[tex](x,y)\to (x-5,y+10)[/tex].To find the image of (7,2), we plug it into the translation rule.[tex](7,2)\to (7-5,2+10)[/tex].[tex](7,2)\to (2,12)[/tex].