## Transformations

__Co-ordinate on a Grid__p. 224 #6-12__Reminders__

- The horizontal axis is the x axis
- The vertical axis is the y axis
- The origin is the point where the two axes cross
- A c-ordinate is made up (x,y)

__Day # 2 Translations__p.228 #6-11, 13__Reminders__

- When we perform a transformation on any point, A becomes A prime. This transformed point makes up the image.
- Translation is another term for slide.
- In order to translate points we consider the translation vector written in square brackets ex. [-3,5)
- We add these points to the (x,y) co-ordinates

__Reflections__p. 232 #4,5, 7a-c, 8 a,b__Reminders__

- There are four possible lines of reflection :
- X axis (x,y) becomes (x,-y)
- Y axis (x,y) becomes (-x,y)
- Diagonal line through (0,0) and (1,1) (x,y) becomes (y,x)
- Diagonal line through (0,0) and (-1,1) (x,y) becomes (-y,-x)

__Rotations__p. 232 #6, 7d, e, 8 d,eReminders

- Rotations can occur in two directions clockwise (cw) and counter clockwise (ccw)
- There are 6 possible rotations 90 degrees cw, 180 degrees cw, 270 degrees cw, 90 degrees ccw, 180 degrees ccw, 270 degrees ccw.

__Mid Chapter Review__p. 232 #1-10

__Exploring Similar Sized Shapes__## Angles and Triangles

**Day #1 What Do You Remember****p.337 #1-4**

**Day#2 Intersecting Lines, Parallel Lines and Transversals****p.342 #6-12**

**Reminders**

**A straight line equals 180 degrees****Straight lines that intersect form supplementary and opposite angles****A transversal is a straight line that crosses parallel lines****Parallel lines form alternate and corresponding angles**

**Day#3 Types of Triangles****p. 346 #4-1**

**Reminders**

**The sum of the angles in a triangle is 180 degrees****Acute Triangle - 3 acute angles****Right Triangle - 1 right angle****Obtuse Triangle - 1 obtuse angle**

__Day#4 Mid-Chapter Review__p. 351 #1-10__Day #5 Pythagorean Theory__p. 356, 357 #4-14__Reminders__**Can only be used with Right Triangles****The Hypotenuse is the longest side and is opposite the right angle****If you need to find the Hypotenuse use the formula h(squared)=a(squared) + b(squared)****If you have have the Hypotenuse use the formula a(squared)=h(squared)-b(squared)**

__Day #6 Chapter Review__p.365 #1-8

__Day #7__

__Math Chapter Self Test__p. 363 #1-10