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Warm-up 3, -3 4, -4 Solve: x2 + 2 = 11 3x2 – 20 = 28

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Presentation on theme: "Warm-up 3, -3 4, -4 Solve: x2 + 2 = 11 3x2 – 20 = 28"— Presentation transcript:

1 Warm-up 3, -3 4, -4 Solve: x2 + 2 = 11 3x2 – 20 = 28
Find the following values: 3) f(3) 4) f(-2) 5) Domain, Range 3, -3 4, -4 2 -3≤x≤5, -3≤y≤2

2 Warm up Solve by Factoring

3 Benchmark #3-6 Solve the equation:                   1, 7 b) -7, 7 c) -1, 1 d) -7, -1 a

4 Benchmark #3-7 Solve the equation: a) -6, 6 b) -5, 5
c) -18, 18 d) -10, 10 a

5 Benchmark #3-8 Tom is going to dinner at a pasta restaurant.  He is allowed to choose one of three pastas, one of 4 sauces, and one of three meats.  How many different pasta dishes can he make?             7 b) 10 c) d) 36 d

6 Solving Radical Equations
Isolate the radical (get the radical on one side and everything else on the other side). 2. Square both sides of the equals sign. 3. Solve for x using the steps for solving linear equations. 4. Check your answer. IF the answer doesn’t check, then “no solution.”

7 EXAMPLE 1: CHECK

8 EXAMPLE 2: CHECK

9 EXAMPLE 3: CHECK

10 EXAMPLE 4: CHECK

11 Try These! CHECK

12 EXTRA EXAMPLE #8: CHECK

13 EXTRA EXAMPLE #9: CHECK

14 Hammer Throw As the hammer travels in the path of the circle, it accelerates towards the center. This acceleration is called centripetal acceleration. The speed of the hammer is represented by s = √1.2a where a is the centripetal acceleration. Find the acceleration (a) when the hammer is thrown at a speed of 18m/s. 270m/sec2


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