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College Algebra final review

College Algebra final review - College Algebra F inal...

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College Algebra Final Review EXAM ONE QUESTIONS— YOU MAY USE – =- ± - x b b2 4ac2a 1. : + = + Use the square root to solve x b22 c b22 2. : + + = Complete the square to solve x2 10x 18 0 3. : - = - Find the imaginary solution 4m 72 27 4. : - + = Use the quadratic formula to solve m2 8m 15 0 5. : - = Use the quadratic formula to solve x24 x2 1 6. : = + - Use the quadratic equation to solve k k 153k 1 7. : = - Solve and identify true solutions x 7x 10 8. : - = Solve and identify true solutions 3 1t 2t2
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9. : + = Solve and identify true solutions k k 12 10. = . Solve I ksd2 for d 11. = . Solve p klg for g 12. = . Solve F kd for d 13. An object is projected directly upward from the ground. After t seconds its distance in feet above the ground is given as 14. s(t) = 144t - 16 t2 . After how many seconds will the object be 128 feet above the ground? 15. - ≤ . . Solve and graoh 4x2 9 0 Use interval notation 16. + < . . Solve and graph x2 2x 0 Use interval notation 17.
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18. 19. Exam Two – 20. You may use: =- ± - x b b2 4ac2a , a(x – h) + k , = - , = - x b2a y f b2a 1. Given = - = + fx 4x2 2x and gx 8x 1 21. Find the composition: ° ( ) f gor f g 2 2. Given = + = - + + fx 5x 3 and gx x2 4x 3 22. Find the composition : ° ( ) f gx or fg x . 3. Given = + - f x x 22 1 State the vertex _____. Algebraically find the x- intercepts_____, and the y-intercept _____. Using interval notation state the domain_____, and the range_____. Sketch the graph if necessary.
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