Problem: Write an article based on this summary: Obtain a vehicle for hauling scrap metal. Weigh your vehicle. Allow facility personnel to unload your vehicle. Register with the facility. Get paid for your scrap metal.

Answer: Make sure you have access to a pickup truck or a vehicle with a large trunk or hatch for hauling your scrap. Salvaged scrap metal is often dirty, rusty, and jagged, so you probably won't want to carry it in the backseat of a passenger car. Flatbed trucks are ideal for hauling scrap metal (so long as you have a way to tie it down during transportation). With these, you don't have to worry about damaging the floor or wall of the truck bed during loading and unloading (which is often done by crane). If you will be hauling large scrap metal loads, take the weight of your cargo into consideration when choosing a vehicle. If you will be hauling multiple appliances at once, for example, you'll need a truck that can handle the added weight during transit. Scrap metal yards have inbound and outbound scales for vehicles bringing in recycling materials. In order to determine the weight of your scrap, you must weigh your loaded vehicle when you arrive and your empty vehicle when you have unloaded it. The difference in weight is the weight of your scrap metal. These vehicle scales are usually manned by a yard worker who will record your vehicle's weight and then give you a visual signal that you are cleared to continue on into the facility. The scrap yard may have additional scales inside the facility with which individual materials can be weighed. This is necessary if you have multiple types of metals that sell at widely different rates (such as copper and aluminum). Scrap metal yards will unload your materials for you, but only if you have the right type of vehicle. If your materials are in the trunk of a sedan or in the back of an SUV, you will have to unload them yourself; yard workers are not allowed to unload scrap metal if the vehicle could become damaged in the process. If you haul your scrap in an open trailer or truck bed, the scrap yard will likely use a magnetic crane to separate ferrous material (that which contains iron and is magnetic) from other metals. If you have your material on a pallet, the scrap yard will unload it with a forklift. If the yard has to sort through your scrap by hand as they remove it (in cases when materials are not already separated), they might not pay you as much as you would receive otherwise. Consider lining the walls and tailgate of your pickup bed with thick blankets or padded mats to prevent potential damage from falling metal as the scrap is lifted out. Separating your materials before arriving at the yard will help to prevent falling materials from damaging your vehicle, as could happen if the magnetic crane were to pick up a jumbled pile of iron and aluminum -- the aluminum could fall out when it is lifted because it is not magnetic. Most scrap yards require you to be at least 16 years of age and to have valid photo identification in order to sell scrap to them. Some may even photograph or fingerprint you for their records. Customer information is stored in order to identify individuals suspected of selling stolen scrap metal, which is of course illegal. Federal and local laws have mandated these record-keeping systems due to increasing issues with metal theft. You are legally responsible for anything you sell, so make sure it comes from a legitimate source! This is a good reason to keep receipts or signed, written statements from material donors whenever you receive scrap metal from a business or individual who is the legal owner of the material. It is illegal to take materials from someone else's property (like an abandoned building or lot) without their permission, so don't take this lightly! While scrap yards are not technically allowed to give you cash for your metal, many will provide you with a payment slip which you may then redeem at an onsite ATM to be paid in cash. Alternatively, some yards may write you a check that you will then have to cash or deposit at your bank. Regardless of how you are paid for your scrap, keep all your receipts from your sales transactions. In addition to being useful for tax purposes, you can use these records to show your local yard that you are a loyal client during your negotiations for good scrap rates.

Problem: Write an article based on this summary: Determine the function. Draw two lines in a + shape on a piece of paper. Number your graph. Calculate a y value for 2-3 x values. Draw the graph point for each pair. Remove the imaginary lines.

Answer:
Get the function of the form like f(x), where y would represent the range, x would represent the domain, and f would represent the function. As an example, we'll use y = x+2, where f(x) = x+2. The horizontal line is your x axis. The vertical line is your y axis. Mark both the x axis and the y axis with equally-spaced numbers. For the x axis, the numbers are positive on the right side and negative on the left side. For the y axis, the numbers are positive on the upper side and negative on the lower side. Take your function f(x) = x+2. Calculate a few values for y by putting the corresponding values for x visible on the axis into the function. For more complicated equations, you may want to simplify the function by getting one variable isolated first. -1: -1 + 2 = 1 0: 0 +2 = 2 1: 1 + 2 = 3 Simply sketch imaginary lines vertically for each x axis value and horizontally for each y axis value. The point where these lines intersect is a graph point. Once you have drawn all the graph points, you can erase the imaginary lines. Note: the graph of f(x) = x would be a line parallel to this one passing through the origin (0,0), but f(x) = x+2 is shifted two units up (along the y-axis) on the grid because of the +2 in the equation.