Sarah Byom and Samantha Kingery. * 1. Divide using synthetic division: X 3 -5x 2 +3x X+1 A. x 2 -6x+9+ -11/x+1B. x 2 -4x+1 C. x 2 +6x+3D. x2-6x+3+-11/x+1.

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Presentation transcript:

Sarah Byom and Samantha Kingery

* 1. Divide using synthetic division: X 3 -5x 2 +3x X+1 A. x 2 -6x /x+1B. x 2 -4x+1 C. x 2 +6x+3D. x2-6x+3+-11/x+1

A.

* 2. Divide using synthetic division: 9x 3 +7x 2 -3x X-10 A. 9x 3 +97x /x-10 B. 9x 2 +97x /x-10 C. 3x 2 -97x-9676 D. 3x 2 -97x+9670

B.

* 3. Use the remainder theorem to find the remainder when f(x) is divided by x-k. f(x)=2x 2 -3x+1; k+2 A. 15B. 9 C. 18D. 3

D.

* 4. Use the remainder theorem to find the remainder when f(x) is divided by x-k. f(x)=x 3 -x 2 +2x-1; k=-3 A. 41B. -43 C. -46D. -32

B.

* 5. Use the factor theorem to determine whether the first polynomial is a factor of the second polynomial. X-1; f(x)=x 3 -x 2 +x-1 A. No solutionB. no C. yesD. 0

C.

* 6. Use the factor theorem to determine whether the first polynomial is a factor of the second polynomial. X-2; f(x)=x 3 +3x-4 A. No solutionB. no C. yesD. 0

B.

* 7. What is 5x 4 -3x+1 divided by 4-x? A. -5x 3 -20x 2 -80x /4-x B. 5x 3 +20x 2 +80x /4-x C. 15x 2 -40x /4-x D. 25x 3 -3x 2 +45x-1274

A.

* 8. What is the remainder of f(x)=2x 3 -3x 2 +4x-7; k=2 A. 20B. 2 C. 10D. 5

D.

* 9. Find the real zeros of the function. Identify as rational or irrational. f(x)=2x 3 -3x 2 -4x+6 A. Rational zero: 3/2Irrational zeros:+/- 2 B. Rational zero: none Irrational zeros: none C. Rational zeros: 2 & 3 Irrational zero: 3/2 D. Rational zeros: 3/2 Irrational zeros: none

A.

* 10. Find the real zeros of the function. Identify as rational or irrational. f(x)=2x 4 -7x 3 -2x 2 -7x-4 A. Rational zero: 1/2Irrational zeros: 1 B. Rational zero: 1 Irrational zeros: none C. Rational zeros: 2 & 4 Irrational zero: 3/2 D. Rational zeros: -1/2 & 4 Irrational zeros: none

D.