Avi Downey 10 Question Quiz

1. Factor. x^4 - 49/x^2
(X^2) (X^3)
(X^4-7)(X^4+7)
(X^3-7)(X^3+7)
(X^3-7) (X^3-7)
2. What is the best method to solve this equation: X^2+8x+16?
Completing the Square
Factoring
Square Roots
Quadratic Formula
3.What is the standard form this parabola?
X^2-2x-3
X^2+2x-3
X^2-2x+3
X^2+4x-8
4. What happens when a>0 and while be is decreasing. What happens to the graph?
Moves right to left
Moves left to right
Moves up to down
Mover down to up
5. What is the discrimanent? (-5+-8(3)+7(-42))^2 - (4) (9) (6)
104113
104112
50402
20
6.Solve the equation, 3x^2+7x-5=0
No solution
All real numbers
-7+-√109/6
7+-√109/6
7. Find the vertex of the equation. 2x^2+5x-3
(-5/4,-49/8)
(5/4,49/8)
(1,2)
(-1.-2)
8. What are the roots of this equation. x^2-2x+8
No solution
(-2,2)
(1,0)
(0,1)
9. What is the best way to solve. X^2 - 64x + 123
None
Quadratic formula
Factoring
Square roots
10. What is the B value in this equation? 20X^2-6
0
20
6
1
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