Eliza is going to the book fair to get some Junie B Jones books because they are her favorite. She estimates that she will spend $50 on the books. She actually spends $54. What is Eliza's percent error?

The expression of this would be 3.75x+y= 23

Ifound this on google “that means that the graph of a function with direct variation has these features: it is a straight line: because the slope is the ratio y/x = k. it passes through the origin (0,0): because y = kx = k (0) = 0.” i hope this you for what your looking for