# Pre-Cal/Trig 2.1, 2.2, 2.6, 3.1

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1. y=a(x-h)2+k
find the vertex
(h,k)
2. x2+4x-6
Complete the Square
• x2+4x -6
• x2+4x+4 -6-4
• (x+2)2-10
3. 2x2-12x+3
Complete the Square
• 2(x2-6x )+3
• 2(x2-6x+9)+3-18
• 2(x+3)2-15
4. y=a(x-h)2+k
What unit multiplies the y-values?
The a-unit
5. y=a(x-h)2+k
What unit translates the graph horizontally?
The h-unit
6. y=a(x-h)2+k
What unit translates the graph vertically?
The k-unit
7. f(x)=ax2+bx+c
What's the vertex?
(-b/2a , plug in the x)
8. r= 100x-0.0002x2
Find the maximum units
• -100/2(-0.0002)
• 250,000 units
9. What does maximum or minimum mean?
Find the vertex
Even Degree
• Up
• Up
Odd Degree
• Down
• Up
Even Degree
• Down
• Down
Odd Degree
• Up
• Down
14. Write Equation with the given 0's
0,6
y=x(x-6)
15. Write Equation with the given 0's
4, -5
• (x-4)(x+5)
• y=x2+x-20
16. Write Equation with the given 0's
2+/5, 2-/5

*hint* think (a2-b2)
• (x-2-/5)(x-2+/5) --------> (x-2)2-5
• x2-4x+4-5
• f(x)=x2-4x-1

### Card Set Information

 Author: gurkem1 ID: 114337 Filename: Pre-Cal/Trig 2.1, 2.2, 2.6, 3.1 Updated: 2011-11-04 01:12:56 Tags: pre cal trig Folders: Description: Sections 2.1, 2.2, 2.6, and 3.1 quiz Show Answers:

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