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ROOT OF AN EQUATION: any value that makes the equation true. Often at x = 0. PowerPoint Presentation
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ROOT OF AN EQUATION: any value that makes the equation true. Often at x = 0. - PowerPoint PPT Presentation


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ROOT OF AN EQUATION: any value that makes the equation true. Often at x = 0. 3rd Monday. PW 10-2 # 1&2. Homework Quiz 5/1: Fr om the test review: 1. Work and answer to the first 2 problems you completed from the review.

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Presentation Transcript
slide9

Homework Quiz 5/1:

From the test review:

1. Work and answer to the first 2 problems you completed from the review.

2. Turn in your graph notes and homework from Wednesday and Thursday.(20 points for 1st page, 20 points for 2nd page, 20 points for homework)

slide10

PW 10-2 # 1&2

solutions are: {-3} since (x+3)(x+3) are the equation's factors.

solutions are: {2,3} since (x-2)(x-3) are the equation's factors.

slide11

Quiz tomorrow:

10 items -

·first 2 are graphing quadratics. Including listing the axis of symmetry, y-intercept and maximum or minimum point.

·next 8 are multiple choice on finding roots, recognizing graph from equation, how the equation shifts up/down, compressed/stretched.

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1. graph y = x2

2. graph y = -1/3x2 + 3

y

x

-6

-3

0

3

6

-9

0

3

0

-9

slide13

1. graph y = x2

2. graph y = -3x2 + 3

slide14

Choose a,b,c or d to describe how the graph of the function is related to the graph of

f(x) = x2

a) translated down c) translated up

b) stretched vertically d) compressed vertically

3. g(x) = 1/4x2

4. h(x) = -x2 - 14

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Homework/ classwork:

1) Graph 4x2 - 3

2) Graph -1/2x2 + 5

3) Describe how #1&2 above are related to the parent function f(x) = x2 .

4) Find the roots of x2 - 10x + 9 (graph or factor)

5) Find the roots of 2x2 + x - 3 (graph or factor)