Answer please?

Math is brought to you by the number … May 7, 2013 Day 78 of 90 90-78 =

Warm-up Kwame wants to find the shortest distance between two distinct points, point A and point B. He’s heard that the shortest distance between two points is a straight line segment. According to Euclid’s first postulate, can Kwame draw a straight line segment between point A and point B?   A. No B. Yes C. It depends on the coordinates of point A and point B D. It depends on the distance between point A and point B

Warm-up According to Euclid’s fourth postulate, which type of angles are always congruent? acute angles right angles obtuse angles straight angles

Warm-up Ripley’s spelling grades are 86, 84, 90, and 90. If he scores 0 on the next spelling quiz, what will happen to the MEAN of his scores?   A) It will increase by 13.5. B) It will decrease by 13.5.   C) It will increase by 17.5. D) It will decrease by 17.5.

Coordinate Algebra EOCT Review Unit 5 – Transformations in the Plane

Key Ideas Precise definitions: Angle Circle Perpendicular lines Parallel lines Line Segment

Unit 5 - Transformations Represent transformations in the plane Compare rigid and non-rigid Translations Rotations Reflections Understand Dilations

Key Ideas Given shapes – Determine which sequence of rotations and reflections would map it on itself Develop definitions of rotations, reflections and translations

Translations Translate C(-4, 7) by (x – 7, y – 9). C’(-11, -2)

Examples

Reflections Reflect across the y-axis

Examples Describe every transformation that maps the given figure to itself.

CW/HW Practice Problems