1. Homework Review

2. Daily Check

3. EOCT Review
Question of the Day

4. UNIT QUESTION: How are the equations of circles and parabolas derived?
CCGPS Geometry ( )
UNIT QUESTION: How are the equations of circles and parabolas derived?
Standard: MCC9-12..A.REI.7, G.GPE.1,2 and 4
Today’s Question:
How do we write the equation of a parabola given a vertex and focus?
Standard: MCC9-12..G.GPE.2

5. Writing Equations of Parabolas

6. 1. Write the equation of an parabola with vertex (0,0) that has a focus (4,0)
Since the focus is (4,0) you know that p=4 and the parabola has a horizontal axis of symmetry

7. 2. Write the equation of an parabola with vertex (0,0) that has a focus (0, -1/2)

8. 3. Write the equation of an parabola with vertex (0,0) that has a directrix y = -6

9. 4. Write the equation of an parabola with vertex (0,0) that has a directrix x = 7/4

10. 5. Write the equation of an parabola with vertex (-4, -1) that has a focus (-4, 2)

11. 6. Write the equation of an parabola with vertex (1, 2) that has a focus (5, 2)

12. 7. Write the equation of an parabola with vertex (4, -1) that has a directrix y = 1

13. Workbook: Page 201 #10-22 all Page 202 #8, 11, 12
Classwork!
Workbook: Page 201 #10-22 all Page 202 #8, 11, 12

14. HOMEWORK
Worksheet