To mail a letter to Vienna, Austria the post office charges a flat rate of $5.50 and an additional $0.25 for every ounce the letter weighs. The cost of mailing a letter is
determined by the equation y = 0.25x + 5.50, where y is the cost of the postage and x is the weight of the letter in ounces.
Step 1 of 2: Graph the equation by finding two points that satisfy the equation and plotting them on the graph. To plot a point, click on the appropriate position on
the graph. You may move a point by clicking and dragging.