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1.
The graph of a quadratic function is called a(n)
1. line.
2. hyperbola.
3. cubic.
4. parabola.
2.
Which of the following is a quadratic function?
1. $f(x)= x^3 + 5x$
2. $f(x)= x-5x$
3. $f(x) = x-9$
4. $f(x) = x^2+3x + 6$
3.
Solve for x.
$x^2 + x=12$
1. 6,-2
2. -3,-4
3. -4,3
4. -2,6
4.
Find the solution of the following equation.

$x^2 - 3x - 40 = 0$
1. x = -5, -8
2. x = -5, 8
3. x = 5, -8
4. x = 5, 8
5.
$2x^2 - x - 3 = 0$
1. $3, -1$
2. $-1, 3/2$
3. $-1, 3$
4. $1/2, 3$
6.
$b^2+8b +7 = 0$
1. 1 and -7
2. 1 and 8
3. 1 and 7
4. -1 and -7
7.
$x^2 + x - 6=0$
1. 4,-1
2. 3,-2
3. -6,1
4. 2,-3
8.
Which expression has only one solution?
1. $x^2 - x - 20$
2. $x^2 + 10x + 7$
3. $x^2 - 12x + 36$
4. $x^2 + 13x + 42$
9.
Complete the square. (Do not solve for x.)
$x^2 + 10x + ?$
2. $100$
3. $25/2$
5. $25/4$
$f(x) = x^2 - 3$