Complex Numbers
i^2=?
-1
Solve:
1/4x +5 = 20
x=60
Solve for x:
x^2=100
x =
+-10
Factor: 3x+6
3(x+2)
For the following equation, we moved the parabola how? (up/down/left/right) (then say how many units)
y=x^2-4
Down 4
Simplify: 4i(2+3i)
8i-12
(3x-4)/2=10
x=8
Solve for k:
1/2k^2-10=-2
k=+-4
Factor:
d^2-3d
d(d-3)
For the following equation, we moved the absolute value graph how? (up/down/left/right) (then say how many units)
y=abs(x+4)
Left 4
Simplify:
3/i
-3i
Solve for k:
4k-12<-3k+7
k < 19/7
Solve for d:
d^2=-20
d=+-2isqrt5
Factor:
20x^4-40x^7
20x^4(1-2x^3)
For the following equation, we moved the parabola how? (up/down/left/right) (then say how many units)
y=(x-3)^2
Right 3
Simplify: (5-2i)(9+2i)
49-8i
-1/4
Solve:
x^2+9x+20=0
x =-4, x=-5
Factor:
x^2-x-56
(x-8)(x+7)
Solve: 4(3x-4)+10=12x-4+3x
x = 2/3
Simplify:
(4)/(1-4i)
4/17 + 16i/17
A line is y = 2x+4. What is the line parallel to this passing through (0,3)?
y = 2x+3
Solve for m:
2m^2+7m+6=0
m=-2, m=-3/2
Factor:
3x^2+16x+16
(x+4)(3x+4)
What is the axis of symmetry and vertex of the equation:
y=2x^2+4x+8
AofS: x = -1
Vertex: (-1, 6)