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Chapter 7: Q23. (page 350)

Find p4andp-2 for the function px=x2-3x+8.

Short Answer

Expert verified

The value of p4=12andp-2=18.

Step by step solution

01

Step 1. Write down the given information.

The given function is px=x2-3x+8.

02

Step 2. Calculation.

Evaluating p4andp-2by plugging x=4andx=-2 in given function px=x2-3x+8.

px=x2鈭�3x+8....Givenp4=42鈭�34+8=12Now,p鈭�2=鈭�22鈭�3鈭�2+8=18

03

Step 3. Conclusion.

The value of p4=12andp-2=18.

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Most popular questions from this chapter

Solve the inequality 15x2+3x-12鈮�0 algebraically.

Solve the inequality x2-8x+12<0 algebraically.

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

Determine consecutive values of x between which each real zero of each function is located. Then draw the graph.

fx=x4-4x2+2
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