Mathematics

Joyce Thornton

14 June, 11:30

Use the quadratic formula to find the roots of the equation. Round to tenths if necessary. x2 - 6x + 2 = 0

A. {0.4, 5.6}

B. {0.5, 4.8}

C. {1.4, 2.4}

D. no real number solution

2. Use the quadratic formula to find the roots of the equation. Round to tenths place if necessary.

11x2 - x - 3 = 0

A. {-1, 1.2}

B. {-11, 13.2}

C. {-0.5, 0.6}

D. no real solution

3. Use the quadratic formula to find the x-intercepts of the function. Round to the nearest tenth if necessary.

y = - 2x2 + 5x - 1

A. {2.3, 0.2}

B. {2.2, - 5.8}

C. {-9.2, - 0.8}

D. no real solution

4. Use the quadratic formula to find the roots of the equation. Round to tenths if necessary. 3x2 - 4x - 8 = 0

A. {-1.7, 2.8}

B. {-2.8, 2}

C. {-1.1, 2.4}

D. no real solution