Slope is defined as "rise over run," with rise indicating vertical distance between two points, and run indicating the horizontal distance between two points. These can be any points the line runs through. You can also use this method if you are given two points on the line, without having the line graphed in front of you. Coordinates are listed as (x,y){\displaystyle (x,y)}, with x{\displaystyle x} being the location along the x, or horizontal axis, and y{\displaystyle y} being the location along the y, or vertical axis. For example, you might choose points with coordinates (3,2){\displaystyle (3,2)} and (7,8){\displaystyle (7,8)}. One point will be point 1, and one point will be point 2. It doesn't matter which point is which, as long as you keep them in the correct order throughout the calculation. The first point's coordinates will be (x1,y1){\displaystyle (x_{1},y_{1})}, and the second point's coordinates will be (x2,y2){\displaystyle (x_{2},y_{2})} The formula is riserun=y2y1x2x1{\displaystyle {
rac {rise}{run}}={
rac {y_{2}-y_{1}}{x_{2}-x_{1}}}}. The change in y-coordinates determines the rise, and the change in x-coordinates determines the run.
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One-sentence summary -- Understand the slope formula. Pick two points on the line and label their coordinates. Determine the order of your points. Set up the slope formula.

Q: Click on the button to "sign up," "register," or "create an account." Enter your email address and a password to create your account. You'll also need to provide your name, birthdate, address, and phone number. Some retailers will not allow you to purchase products as a guest, but some do with just your email. While they'll likely have you provide an ID later, many sites require you to also input your birthday when you create the account to discourage underage individuals from spending time on their site. Click the "checkout" button at the bottom of the "cart" screen. Input your shipping and billing information, then provide your payment method. Most sites accept payment through credit card, though some will also allow you to use payment services like PayPal. If you plan to make additional purchases through the retailer, you may be able to save your payment method to make your later purchases easier. Online alcohol retailers are licensed and regulated just like storefront locations, and they're required to follow the same ID laws. In the U.S., you can't legally buy alcohol until you're 21 years old, even if you purchase it online. The retailer may require that you submit a copy of your ID to prove that you are old enough to buy alcohol. Click the button to finalize your order, and then wait for your shipment to arrive. Soon, you'll be enjoying your favorite alcoholic beverages delivered straight to your door!
A: Create an account on the retailer's site. Confirm your shipping and billing information. Confirm that you are of legal buying age. Approve the transaction.

Article: You may also use the Windows XP Setup disks. If using the disks you will have to install each disk when prompted during the setup. This will start the Windows XP setup program. This prompt will appear shortly after the (POST) power-on self test. Once the CD loads, press the Enter key at the Welcome to Setup screen. Since there is already an existing Windows XP installation you may receive a prompt to repair it. Press the ESC key to bypass this option and continue formatting the disk. " All your existing partitioned and non-partitioned spaces will be listed on the screen. Use the arrow keys to select fields to be deleted. When prompted, press the L key to confirm partition deletion. This will clear old data from the hard drive of the computer. " Now that all the partitioned spaces are deleted, press the C key to create a new partitioned space. Press enter to create a new partition of the maximum size.
Question: What is a summary of what this article is about?
Insert the Windows XP CD-ROM or DVD-ROM into your computer. Restart the PC. Press any key to boot from CD when prompted. Press the F8 key to agree to the Microsoft end user license agreement when prompted to do so. Select each field that does not say "Unallocated Space. Press the D key to delete each field. Repeat steps 6 and 7 until the only field left is "Unallocated Space.

Problem: Article: Ensure that the circuit for the room you are working in has been flipped off. This will prevent accidental electrocution and reduce the risk of fire. Most circuit breakers are located in the garage or basement, but placement will vary from home to home. When you find the breaker box, locate the breaker that controls the lights for the room you are working on. Flip it to the off position to keep power from traveling down those wires. Most electrical panels label switches for the different rooms in your home. Use a voltage tester to check that power is no longer flowing to that room. This will affect the way that you perform the installation. You can tell if the power is coming into the switch by removing the light switch panel. If two black wires are coming into the switch box, then the power is coming into the switch first. If there is only one black wire, then the power is coming into the switch from the light fixture. You can usually use an electrical tester to be sure. A 3-way switch will not have the words on or off written on it. Before you start installing, take a look at your new 3-way switch to identify all of the terminals that you will be connecting wires to. Traveler wire terminals - These are located on each side of the switch towards the top of the switch. Ground wire terminal - Older switches may not have this, but all new switches must. This is usually a green screw located on the top or bottom of the switch, mounted to the frame. Common wire screw - This is located on the left side of the switch, and is a different color than the two traveler terminals.
Summary: Switch off the circuit. Determine if the power goes to the light or the light switch. Replace any regular switches with the 3-way switches.

Article: Even something as simple as shutting off the lights when you leave a room can help to save energy. Turn off the lights that are not being used in classrooms and other areas, such as empty bathrooms and unoccupied multi-purpose rooms. Try organizing a student "light patrol" to check empty classrooms, labs, and other spaces to make sure the lights are off when they're not in use. If you are a teacher, remind your students by saying, "Did you know that 90% of the energy that lightbulbs use is expended as heat? If we turn off lights when we don't need them, we can save energy and keep rooms cooler." Try doing this at a time when the students will remember it, like just before leaving the classroom or as you are turning off some lights. It may not always be necessary for you to have the lights on in your classroom. There may be times of the day when the sun is especially bright and sufficient for what you are doing in your classroom. Other times of the day, you might only need half of the lights. If you are a student, ask your teacher if it is okay to work with fewer lights on. For example, you could approach your teacher and say something like, "The sun is so bright today. Would it be okay if we opened the blinds and turned off some or all of the lights to save energy?" If you are a teacher, try asking your students, "Can everyone see okay?" Replacing all of the incandescent bulbs in your school with compact fluorescent lights (CFLs) can translate to big energy savings for your school. If you're a student, talk to your teacher or your school principal about switching to CFLs. CFLs consume a little more energy than incandescent bulbs when you first turn them on, but after the bulb is on, they use 70% less energy than an incandescent bulb. Make sure that you do not switch CFL bulbs off and on too much. It is best to leave them on for 15 minutes or longer to save more energy.
Question: What is a summary of what this article is about?
Turn off the lights when rooms are not in use. Use natural light when the sun is bright. Talk to your school administrators about switching to fluorescent bulbs.