First try was incorrect It costs $64.60 to fill up a 19 gallon gas tank and $74.80 to fill up a 22
gallon tank.
What is the constant of proportionality that relates the cost in dollars,
y, to the number of gallons of gas, x?
label optional
112
h
x?
f(x) V X

Suppose you are an avid reader and are looking to save money on the cost of books instead of paying about $20 for each book, you decide to look into purchasing a kindle for $120 you can purchase e-books for about $5 each 1. find the slope-intercept equation for the cost of the hard copy of books using x to represent the number of books 2. find the slope-intercept equation for the cost of the kindle with cost of e-books using x to represent the number of books