1. EOC Strategy - GEOMETRY Parallel & Perpendicular Slopes

2. STRATEGY #1 – LOOK FOR KEY WORDS PARALLEL  Parallelogram  Same direction FIND: SAME SLOPES PERPENDICULAR  Right angles  Square or rectangle  FIND:  OPPOSITE SIGNS & RECIPROCALS

3. STRATEGY #2 –USE A GRAPH  If there are coordinates & equations given in a problem -GRAPH THEM -LABEL THEM

4. SOMETIMES THE PROBLEMS ARE DIRECTLY STATED

5. SOMETIMES WE MUST INFER WHAT TO DO USING KEY WORDS & GRAPHS  EXAMPLE G2.2 A triangle has vertices G(1, 1), H(4, -1), and I( 3, 4). Identify any right angles.

6. CHECK IT OUT G2.3 Use both strategies: graph & key words  Parallelogram RSTU has vertices R(3, 5), S(6, 3), and T(3, 2). Which is an equation of side RU?

7. CHECK IT G2.4 When graphed on a coordinate plane, Monarch Street runs from (-1, 6) to (1, 2). Wildcat Avenue runs perpendicular to Monarch Street and passes through (4, 1). What equation represents Wildcat Avenue?

8. CHECK IT G2.5  Which is an equation of a line that is perpendicular to the graph of x – 3y = 12? a. x + 3y = 9 b. 3x – y = 5 c. 3x + y = 6 d. x – 3y = -3

9. Check it G2.6  Which is an equation of a line parallel to segment MN? A. 2x – y = 5 B. x – 2y = 4 C. x + 2y = 12 D. 2x + y = 3