Review on a apr 2
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Review on A-APR.2. Do Now. Write down the learning goal Get your folder and update homework log Brainstorm an idea for slacker day. How to use synthetic substitution. We’ll be using this problem: Find f(3) for f(x)=5x^3+3x^2-2x+4 1. Draw a box for the f(x) function

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Review on A-APR.2

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Review on a apr 2

Review on A-APR.2


Do now

Do Now

  • Write down the learning goal

  • Get your folder and update homework log

  • Brainstorm an idea for slacker day


How to use synthetic substitution

How to use synthetic substitution

  • We’ll be using this problem: Find f(3) for f(x)=5x^3+3x^2-2x+4

  • 1. Draw a box for the f(x) function

  • 2. Write down the coefficients next to it

  • 3. Draw a line below that with enough space for another line of numbers.

  • 4. Bring down the first coefficient below the line.


Review on a apr 2

  • 5. Multiply that same number by the f(x) value and write that underneath the second coefficient but above the line.

  • 6. Add the coefficient with the number just written and write sum directly below the line.

  • 7. Multiply that number by the f(x) value and write it underneath the third coefficient.

  • 8. Add the third coefficient with that same number and write the sum directly below that line.


Example problem

Example problem

  • Find f(3) for f(x)=5x^3+3x^2-2x+4


Another example problem

Another example problem

  • Find f(-4) for f(x)=3x^4-2x^2+4


Additional practice

Additional practice

  • In the Algebra 2 books, go to page 368

  • Do all problems between 13 to 20


Exit ticket

Exit Ticket

Find: f(-4) for f(x)=x^3+3x-5x-7


Homework

Homework

  • 2x^4-5x^2+8x-7, find f(6)

  • 5x^2+2x^3-3x^2+6, find f(3)

  • 3x-5x^3+3x^2-6x^4, find f(5)


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