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- 1. Multiple Choice
What are the solutions to this quadratic?
±81
±9
±3
No real solution
- 2. Multiple Choice
Find the values for n.
-4, 2
-2, 4
-16
-4
- 3. Multiple Choice
Find the zeros of this quadratic. (Solutions)
Hint: Set each factor equal to zero, then solve.
b=4/5, b=3
b=4, b=-3
b=1/5, b=3
b=4/5, b=-3
- 4. Multiple Choice
Determine the values of
a, b, and c for
the quadratic equation:
4x2 – 8x = 3
a = 4, b = -8, c = 3
a = 4, b =-8, c =-3
a = 4, b = 8, c = 3
a = 4, b = 8, c = -3
- 5. Multiple ChoiceWhat 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 - 6. Multiple Choice
Suzie solves the equation below:
x2 + 4x - 12 = 2
(x - 2)(x + 6) = 2,
by setting x -2 = 0 and x + 6 = 0.
Her solutions are x = 2 and x = -6.
Is Suzie correct? Why or why not?
Yes, she factored correctly and then used the zero product property
Yes, she factored correctly and then square rooted.
No, she did factor correctly, but she can't use the zero product property as shown. She needed to set equation equal to zero.
No, she didn't factor correctly so the rest of her work is wrong.
- 7. Multiple Choice
Solve the following for k.
9k2 = 225
4
4, -4
25, -25
-5, 5
- 8. Multiple ChoiceSolve the quadratic equation by factoring
a² + 10a + 21 = 0± √21-3 , -73 , 728 , -7 - 9. Multiple ChoiceWhat should you do first in solving this equation?
x2 + 6x - 13 = 3Get factored formWrite down: a=1, b=6, c=-13Make it equal 0 by subtracting 3 on each sideType it all in a calculator. - 10. Multiple ChoiceIn 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 - 11. Multiple ChoiceWhat is this?This is the speed of light formula.This is the quadratic formula.This is the zero product property.This is scary.
- 12. Multiple ChoiceIdentify the 'c' value: y = 16x2 -8x -2416-824-24
- 13. Multiple ChoiceWhich of the following equations matches standard form of a quadratic?ax + by = cy = a(x - h)2 + ky = ax2 + bx + cy = mx + b
- 14. Multiple Choice
What are the zeros? (solutions)
-4, 2
-2, 4
-16
-4
- 15. Multiple Choice
What are the solutions?
-2, 4
-8
±8
No real solution
- 16. Multiple Choice
SOLVE:
Substitute 0 for f(x), then solve.x=
x=
x=
x=
- Answer choicesTagsAnswer choicesTags