Article: This is just like our example in the first section, except that we're dealing with a cubic equation rather than a quadratic equation, so we can solve it in the same way.  First, we'll take our equation's derivative:s = 5t3 - 3t2 + 2t + 9s = (3)5t(3 - 1) - (2)3t(2 - 1) + (1)2t(1 - 1) + (0)9t0 - 115t(2) - 6t(1) + 2t(0)15t(2) - 6t + 2  Then, we'll plug in our value for t (4):s = 15t(2) - 6t + 215(4)(2) - 6(4) + 215(16) - 6(4) + 2240 - 24 + 2 = 218 meters/second For this problem, we'll use (1,3) as our P point, but we'll have to find a few other points near it to use as our Q points. Then, it's just a matter of finding our H values and making an estimation.  First, let's find Q points at t = 2, 1.5, 1.1 and 1.01.s = 4t2 - tt = 2: s = 4(2)2 - (2)4(4) - 2 = 16 - 2 = 14, so Q = (2,14)t = 1.5: s = 4(1.5)2 - (1.5)4(2.25) - 1.5 = 9 - 1.5 = 7.5, so Q = (1.5,7.5)t = 1.1: s = 4(1.1)2 - (1.1)4(1.21) - 1.1 = 4.84 - 1.1 = 3.74, so Q = (1.1,3.74)t = 1.01: s = 4(1.01)2 - (1.01)4(1.0201) - 1.01 = 4.0804 - 1.01 = 3.0704, so Q = (1.01,3.0704)  Next, let's get our H values:Q = (2,14): H = (14 - 3)/(2 - 1)H = (11)/(1) = 11Q = (1.5,7.5): H = (7.5 - 3)/(1.5 - 1)H = (4.5)/(.5) = 9Q = (1.1,3.74): H = (3.74 - 3)/(1.1 - 1)H = (.74)/(.1) = 7.3Q = (1.01,3.0704): H = (3.0704 - 3)/(1.01 - 1)H = (.0704)/(.01) = 7.04  Since our H values seem to be getting very close to 7, we can say that 7 meters/second is a good estimate for the instantaneous velocity at (1,3).
Question: What is a summary of what this article is about?
Find the instantaneous velocity at t = 4 given the displacement equation s = 5t3 - 3t2 + 2t + 9. Use graphical estimation to find the instantaneous velocity at (1,3) for the displacement equation s = 4t2 - t.

Problem: Article: Ask friends and relatives with tattoos for the name of the artist who did the art you particularly enjoy, or for recommendations in general. Even complete strangers are often happy to talk about their ink. Visit local tattoo parlors to check out catalogs of their artists' previous work. You can often find their portfolios online as well, curated on blogs or Instagram accounts dedicated to a particular type of tattoo work. The best tattoo artists generally attend these conventions. You can have work done here, or just use the opportunity to browse. If a deal seems too good to be true, it is. A cheap artist is almost always a bad one. In the United States, you can expect a decent artist to charge between $50 and $300 per hour, depending on skill level.
Summary: Talk to people with tattoos. Look through artist portfolios. Attend tattoo conventions. Avoid the cheapest options.

INPUT ARTICLE: Article: It has a blue icon that says "Ps" inside of a square.  Click the Photoshop icon on your home screen to open a new Photoshop session. It's in the menu bar at the top of the screen.  This displays a drop-down menu. It's the first option in the File drop-down menu.  This displays a pop-up window you can use to create a new Photoshop document. This creates a document that is 3.5 x 2 inches with a 1/8th-inch 'bleed' area around the edges.  The unit of measurement should be "Inches".  If it is not inches, click the drop-down menu next to "Width" and "Height" and select "Inches". If you are using a print service, such as Vistaprint or Moo or a print shop, make sure you use their recommended Photoshop settings.  You can even download a blank Photoshop file from their website. The bleed area ensures that the colours "bleed" out over the edges when the cards are cut.  This prevents the white marks around the border of the card when it is cut. This creates a file that has a resolution of 300 pixels per inch.  This is standard for most print materials. Use the drop-down menu next "Color Mode" to select "CMYK".  CMYK is the color mode most commonly used with printed graphics. This creates a new Photoshop document with the dimensions you set. It's in the menu bar at the top of the screen.  This displays a drop-down menu. It's about halfway down the "View" menu.  This turns on Rulers for your documents. To create a guideline, click on the ruler at the top and left of your document and drag inwards.  Do this to create two horizontal guidelines. One at 0.125 inches and one at 2.125 inches. Then create two more vertical lines at 0.125 inches and 3.625 inches. The area outside the guidelines is the bleed area. It's in the menu bar at the top of the file. This opens a new window you can use to save your document. Use the text box next to "File Name" to type a name for your business card document. PSD is the file format that is native to Photoshop.  Saving your files in Photoshop format is the best way to preserve the color detail and editable layers.  To select PSD, use the drop-down menu next to "Format" to select "Photoshop" or "PSD". This saves your photoshop document. It's a good idea to save frequently while working in Photoshop.  To save, click File in the menu bar, and then click Save or press Ctrl+S on PC, or ⌘ Command+S on Mac.

SUMMARY: Open Photoshop. Click File. Click New. Type 3.75 next to "Width" and 2.25 next to "Height". Type 300 next to "Resolution". Select "CMYK" for the color mode. Click Ok. Click View. Click Rulers. Drag a guideline to 0.125 inches in from all edges. Click File. Click Save As. Type a name for your file. Select "PSD" as the file format. Click Save.

Holding the spoon like this allows you a greater field of motion. When you turn your wrist away from you the spoon will dip downwards, into your food, and when you turn it towards you, the spoon will turn back up. This is a more flexible position than if you held the spoon in, say, a fist, or between your thumb and index finger. Bring the spoon to your mouth and eat from the broad side of the spoon, rather than the tip. You can use your wrist here to tilt the spoon upwards to aid in eating. Foods that you eat with a spoon are frequently liquid based. It is easy to make slurping noises when eating with a spoon. To minimize noise when eating, eat very slowly. Make sure to open your mouth wide enough to get food in without having to resort to slurping. Eating food slowly will also help you best enjoy the taste and texture of your food. Make sure to grip firmly on your spoon when you eat. Keeping a loose grip can cause you to drop your spoon, which can cause a mess and loud noises. Keep your grip firm enough that the spoon does not wobble in your hands while you eat.
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One-sentence summary --
Turn your wrist to dip the spoon. Use the side of the spoon. Eat slowly and gently. Keep your grip firm.