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- 1. Multiple-choice5 minutes12 ptsFind the zeros of this quadratic.b=4/5, b=3b=4, b=-3b=1/5, b=3b=4/5, b=-3
- 2. Multiple-choice5 minutes12 pts-2, 4-8±8No real solution
- 3. Multiple-choice5 minutes1 ptWhat are the zeros?x= 0 and x= -4x= 0 and x= 4y= 0x= 2
- 4. Multiple-choice5 minutes1 ptWhich of the following equations matches standard form of a quadratic?ax + by = cy = a(x - h)2 + ky = ax2 + bx + cy = mx + b
- 5. Multiple-choice30 seconds1 ptWhat is another word for zeros?y-interceptsrootsvertexaxis of symmetry
- 6. Multiple-choice2 minutes1 ptWhat are the x-intercept/s of the function?{x|x = 3}{x|x =-3,3}(3, 0)(-3, 0)&(3, 0)
- 7. Multiple-choice1 minute1 ptTrue or false:
The solutions, roots, x-intercepts, and zeros of a quadratic equation are all the same thing.TrueFalse, because the solution and root are the same but the x-intercept and zero are differentFalse, because the x-intercept and root are the same but the zero and solution are differentFalse, they are all different - 8. Multiple-choice2 minutes12 ptsSolve
4m2 - 100 = 0m=25, -25m=96m=5, -5m=-96 - 9. Multiple-choice5 minutes1 ptIn the equation
y = x2 +5x +7, match each leading coefficient with its correct lettera=0, b=5, c=7a=1, b=5, c=7a=7, b=5, c=1 - 10. Multiple-choice30 seconds1 ptSolve by factoring:3x2 + 5x + 2 = 0x = -2/3 and x = -1x = -3/2 and x = -1x = 2/3 and x = 1x = 2/3 and x = -1
- 11. Multiple-choice30 seconds1 ptSolve by factoring: 4x2 + 11x - 3 = 0x = -3/4 and x = -1x = 4 and x = 3x = 1/4 and x = -3x = -1/4 and x = 3
- 12. Multiple-choice15 minutes1 ptWhat is the first step to solving THIS equation by completing the square?
a2 + 10a + 21 = 0Set the equation equal to zeroDivide 10 by 2 and add the result to both sidesAdd a2 and 10a togetherSubtract the 21 - 13. Multiple-choice30 seconds1 ptSolve for x:
(x+6)2=49x=7,12x=±7x=1,-13x=43,-55 - 14. Multiple-choice5 minutes1 pt3. Solve the equation
4x2 - 25 = 05/2, -5/25/2, 5/2-5/2, -5/2-5/2, 5/2 - 15. Multiple-choice3 minutes1 ptSolve by completing the square:
x2 + 6x = 55x = -14, 2x = 14, -2x = -5, 11x = 5, -11 - 16. Multiple-choice15 minutes1 ptSolve
a2 + 2a - 24 = 0a = -6, 4a = 6, -4a = 12, -2a = 8, -3 - 17. Multiple-choice15 minutes1 ptSolve
2x2 + 17x + 21 = 0x= -21/2, -17x= 2/3, 16x=-7, -3/2x=15, -3/7 - 18. Multiple-choice3 minutes1 ptWhat are the roots of the function
f(x)= (x - 2)(x + 3)?x = - 2 or x = 3x = 2 or x = -3The are no real rootsx = 2 or x = 3 - 19. Multiple-choice3 minutes1 ptSolve the following equation by completing the square:
n2 = 18n + 40{11, -11}{16, 2}{20, -2}{10, -4} - 20. Multiple-choice3 minutes1 ptSolve by completing the square. Round if needed.
x2 -4x -5= 011 and -71 and 31.73 and -1.735 and -1
