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Chapter 7: Q27. (page 350)

Find p4andp-2 for the function px=7x2-9x+10.

Short Answer

Expert verified

The value of p4=86andp-2=56.

Step by step solution

01

Step 1. Write down the given information.

The given function is px=7x2-9x+10.

02

Step 2. Calculation.

Evaluating p4andp-2 by plugging x=4andx=-2 in given function px=7x2-9x+10.

px=7x2鈭�9x+10....Givenp4=742鈭�94+10=86Now,p鈭�2=7鈭�22鈭�9鈭�2+10=56

03

Step 3. Conclusion.

The value of p4=86andp-2=56.

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Most popular questions from this chapter

Complete each of the following.

  1. Graph each function by making a table of values.
  2. Determine consecutive values of x between which each real zero is located.
  3. Estimate the x-coordinate at which the relative maxima and relative minima occur.

fx=x3+5x2-9

Complete each of the following.

  1. Graph each function by making a table of values.
  2. Determine consecutive values of x between which each real zero is located.
  3. Estimate the x-coordinate at which the relative maxima and relative minima occur.
fx=x3-2x2+6

Solve the equation x2+13x-3536=0 by completing the squares.

Complete each of the following.

  1. Graph each function by making a table of values.
  2. Determine consecutive values of x between which each real zero is located.
  3. Estimate the x-coordinate at which the relative maxima and relative minima occur.

fx=-3x3+20x2-36x+16

The graph of the polynomial function fx=axx-4x+1 passes through the point 5,15. Sketch the graph of the function.
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