Chapter 12

This following week we got back into trig. It was weird and kinda hard to switch back after having such easy lessons the past weeks before. We were introduced to Chapter 12 and also did a lot of work on aleks. It was a hectic week with all the "snow" threats and the rainy weather. I understand Chapter 12-Section 1 more than anything else because there wasn't much to it. It was mostly just having to connect the vectors, add on to them, or flip them around.


vector- is a line that represents motion

• line has a magnitude and a direction, which are the points that are given.
• ( x is the head and y is the tail )
• when is given, it is not asking for an absolute value like usual. that symbol means find the magnitude.

When working with a vector, it usually ask for 3 things.

Example:

Find 4t

• That is telling you to take the vector that it gives you and draw it four times connecting in a straight line.
• If it asks you to find –t, you draw the vector facing the opposite direction.
• Lastly, if it wants you to find t + q, you connect the two vectors together, usually creating an angle.