Okay so first you distribute to both sides(the arrows). then you subtract 5y to both sides and bring everything down. then you subtract 7 to both sides and get -27=9y and divide by 9 to get the y alone .
1. thats because in the alphabet where a=1 and b=2 and c=3, A=1
XD no sé que decir E=mc2 lo siento.
Answer: wait I was wrong I saw thinking about something else
yes that is a unit rate.
m =( Y2 - Y1)/ (X2-X1)
m =( 3-(-5))/ (-6-3)
m = - 8/9
I am assuming you meant a slope of 9/8 in your original question, so the points perpendicular to I are answer D.
Perpendicular means the slope is opposite reciprocal of your first slope given.