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EOCT Practice. Describe the extrema of the quadratic y = -2(x – 3) 2 + 2 Maximum at (-3, 2) Minimum at (-3, 2) Minimum at (3, 2) Maximum at (3, 2). D. 4. 5. 12. 3. x. 8. x. 4. 8. x. 12. 13. x. 6. Daily Check.
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EOCT Practice • Describe the extrema of the quadratic y = -2(x – 3)2 + 2 • Maximum at (-3, 2) • Minimum at (-3, 2) • Minimum at (3, 2) • Maximum at (3, 2) D
4 5 12 3 x 8 x 4 8 x 12 13 x 6 Daily Check For each circle, find the value of x. No decimals. Write answers in simplified fraction or radical form. 1. 2. 3. 4.
Math II UNIT QUESTION: What special properties are found with the parts of a circle? Standard: MM2G1, MM2G2 Today’s Question: What effect does changing the radius have on S.A. and Volume of a sphere? Standard: MM2G4.a,b
Surface Area & Volume of Spheres
HEMISPHERE: HALF A SPHERE r Think of the globe! The equator cuts the earth into the northern and southern hemisphere.
Find the exact and approximate Surface Area & Volume of a Sphere (round to the nearest hundredths) 10 cm
The circumference of a great circle of a sphere is 25 inches. Find the approximate surface area & volume of the sphere. (Round to the nearest tenths.) 25 in
SA and Volume of a Sphere A spherical balloon has a surface area of 16 in.2 Find the volume of the sphere. 10 in 5 in
Comparing Two Spheres
Surface Area & Volume of a Sphere A spherical balloon has an initial radius of 5 in. When more air is added, the radius becomes 10 in. Explain how S.A. and Volume change as the radius changes. 10 in 5 in
If radius is doubled… x 2 x 22 x 23
If radius is 5 times bigger… x 5 x 52 x 53
If radius is 2/3 smaller… x 2/3 x (2/3)2 x (2/3)3
Volume of a Sphere A sphere has an initial volume of 400 cm.3 The sphere is made bigger by making the radius 4 times as big. What is the new volume of the sphere? 10 in 5 in
Sphere Worksheet Surface Area and Volume of a Sphere Practice Questions for Classwork
Homework Textbook Page 241 #1-14
Workbook Pg. 249-251 #6-8, 16-18, 20-22, 26-29
Class work Workbook Page 251 #30-33