Write the appropriate direct variation equation if y = 8 as x = -4

How do you use the elimination method for this question? explain, because i really want to understand!

Ann and betty together have $60 ann has $9 more than twice betty’s amount how much money dose each have

Taylor graphs the system below on her graphing calculator and decides that f(x)=g(x) at x=0, x=1, and x=3. provide taylor with some feedback that explains which part of her answer is incorrect and why it is incorrect. f(x)= 2x+1 g(x)= 2x^2+1