Groovy Graphs
The vertex of
f(x)=-2(x+3)2 -4
What is (-3, -4)
Factor out the greatest common factor:
6x2+42x+66
What is 6(x2+7x+11)
Solve for x: x2+2x-8=0
x=-4, 2
Square root of negative 25
What is 5i or -5i?
Value that completes the square:
x2 -18x __
What is 81?
y-intercept of
y=-(x-3)2+2
What is (0,-7)?
Factors of x2+14x+40
(x+4)(x+10)
Solve for x: x2=4x+12
x=6, -2
(8-2i) + (-3+19i)
What is 5+17i?
Domain of
f(x)=-0.5(x+1)2-5
x=all real numbers, or (-inf, inf)
axis of symmetry of
y=4x2-8x+2
What is x=1?
Factors of x2-14x+49
(x-7)2
DAILY DOUBLE
Solve for x: 2x2+6x=8
x=-4, 1
(2i)(5-i)
What is 2+10i?
Range of
f(x)=2(x+9)2-4
What is y>=-4, or [-4,inf)
DAILY DOUBLE
The vertex of f(x)=x2-8x+12
What is (4, -4)?
Factors of 4x2-225
(2x+15)(2x-15)
Solve for x: x2+8x+6=0
What is -4+sqrt10, -4-sqrt10
or -0.84, -7.16
Multiply (2+3i)(2-3i)
What is 13?
Convert f(x)=x2+6x-7 from standard form to vertex form by completing the square.
What is f(x)=(x+3)2-16
Maximum height of a ball thrown upward following a path of h= -16t2+32t+9.
What is 25 feet, after 1 second?
Factors of 5x2+13x+6
What is (5x+3)(x+2)?
Solve for x: 9x2+6x+1=4
x=1/3, -1
Solve for x: x2-4x=-10
2 plus/minus isqrt6
Two solutions for the system:
y=x2-2x+3
y=x+1
What are (1,2) and (2,3)?