Write an article based on this "Learn to test the quality of gold. Follow market prices. Obtain a scale. Buy gold from customers. Purchase gold at trade shows. Purchase gold in large volumes."
article: Test gold with a magnet. Gold does not have magnetic properties. Test gold with a fine steel file. Gold is easy to file, but the file will bounce off of other metals. Purchase acids for testing. Follow the instructions on the package to test the gold for genuineness, testing in an inconspicuous spot to prevent visible damage. You can find the daily market prices of gold on many brokerage websites. You will need to purchase a jeweler’s scale that weighs gold according to pennyweight (1/12 of a troy ounce) rather than simply weighing gold in grams. Many customers are happy to sell their gold jewelry and coins to a respectable dealer. Many dealers at a trade show will give a price break to someone who is just getting started in the business. Large volume purchases tend to have a lower price per ounce.

Write an article based on this "Know your function. Select values of x. Calculate the values of the function. Calculate the average rate of change of the function. Interpret the result."
article: In mathematics, a function is a mathematical relationship between numbers, so that you enter one number and another number is the result. Functions can generally be graphed. They may represents straight lines, parabolas, or random-looking curves that have no easy definition. Some sample functions are:   y(x)=3x+4{\displaystyle y(x)=3x+4} (the function of a straight line)  y(x)=sin(x){\displaystyle y(x)=sin(x)} (a function for a waved line)  y(x)=x2{\displaystyle y(x)=x^{2}} (a function for a parabola) Finding the average rate of change of a function means measuring the value of the function at two different points along the x-axis. Select one value of x where you wish to begin measuring, and then determine how far along the axis you wish to advance. Depending on your purposes, you may choose a wider or narrower range of x values to measure. For this exercise, select the first x-value at 0 and the second x-value at 3. Rate of change of the function measures how much the y-values change over the chosen horizontal x-distance. To calculate this change, you need to know the y values at each chosen value of x. For the sample function, y(x)=x2{\displaystyle y(x)=x^{2}}, select the two values x=0 and x=3, for example. The corresponding values of y(x){\displaystyle y(x)}, therefore, are:  y(0)=02=0{\displaystyle y(0)=0^{2}=0} y(3)=32=9{\displaystyle y(3)=3^{2}=9} The rate of change of a function can be written formally as:  A(x)=ΔyΔx=f(x+h)−f(x)h{\displaystyle A(x)={\frac {\Delta y}{\Delta x}}={\frac {f(x+h)-f(x)}{h}}} In this formula, f(x){\displaystyle f(x)} represents the value of the function at the first chosen x-value. f(x+h){\displaystyle f(x+h)} is the value of the function some distance away at a second value of x. The denominator h{\displaystyle h} is the distance between the two measurements.  h{\displaystyle h} can also be represented as Δx{\displaystyle \Delta x}, since it is the distance or change in the chosen x-values. For the chosen function y(x)=x2{\displaystyle y(x)=x^{2}}, you can calculate the average rate of change from 0 to 3 as follows:  A(x)=ΔyΔx=9−03−0=3{\displaystyle A(x)={\frac {\Delta y}{\Delta x}}={\frac {9-0}{3-0}}=3}. For this function, the rate of change is a measure of how much the value of the function changes vertically as you move horizontally along the x-axis. In this case, the parabola y(x)=x2{\displaystyle y(x)=x^{2}} begins at point (0,0) and climbs to point (3,9) over the measured interval. Although the function itself is not a straight line, the average rate of change is measured as the slope of the straight line connecting those two points. This line climbs 3 units for each single unit increase in x. Note that the average rate of change for a function may differ depending on the location that you choose to measure. For the parabola example, the average rate of change is 3 from x=0 to x=3. However, for the same function measured from x=3 to x=6, also a distance of 3 units, the average rate of change becomes 8.33.

Write an article based on this "Open the Control Panel on the computer that is connected to the printer. Open the Network and Sharing Center. Click the "Change advanced sharing settings" link. Expand the Private section. Select "Turn on file and printer sharing". Open the "Devices and Printers" option in the Control Panel. Right-click on the printer you want to share and select "Printer properties". Click the . Open the Control Panel on the computer accessing the shared printer. Select "Devices and Printers" in the Control Panel. Click the . Select "Add a network, wireless, or Bluetooth printer"."
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In order to share printers, you'll need to enable sharing on the system level for the computer that has the printer installed. If you are using Category view, select "Network and Internet" and then click "Network and Sharing Center". This is located on the left side of the Network and Sharing Center. This is the profile for your Home network. This will enable the computer to share its installed printers with other computers on the network. Click the Save changes button. If you are in Category view, click the "View devices and printers" link. Don't select the "Properties" option, as it won't open the correct window. Sharing tab. Check the "Share this printer box" and click Apply. Now that the printer has been shared, you can connect to it from the second computer. If you are in Category view, click the "View devices and printers" link. Add a printer button. Select the newly-shared printer from the list and click Next to install the software. You can now select the printer when printing a document as long as the computer the printer is installed on is turned on and logged in.