1. Review HW

2. Skills Check CIRCLES & PARABOLAS

3. USING DISTANCE & MIDPOINT Geometry & Algebra in the Coordinate Plane

4. Midpoint

5. Example 1: Find the midpoint between (5, 8) and (2, 6).

6. Example 2: Find the midpoint between (-8, 3) and (4, -1).

7. Distance

8. Example 3: Find the distance between (4, -5) and (-2, 3).

9. Example 4: Find the distance between (5, -3) and (1, 7).

10. Alg. Proofs Task WS 1. A circular skylight has a diameter with endpoints at (  6, 32) and (2, 26). Find the center and radius of the skylight.

11. Alg. Proofs Task WS 2. Circle C has a center of (-2, 3) and a radius of 4. Does point (-4, 6) lie on circle C? What’s the equation of the circle? Substitute the point and see if left side equals right side. No, (-4, 6) does NOT lie on the circle.

12. Alg. Proofs Task WS 6. A parabola has a focus at (3, 4) and directrix at y = –2. Does the point (–9, 13) lie on the parabola? Write the equation of the parabola. Substitute the point and see if left side equals right side. Yes, (-9, 13) does lie on the parabola.

13. Keep working. We will go over answers later. Algebra Proofs Task WS

14. ALGEBRA PROOFS WORKSHEET Make a notecard. HOMEWORK