factoring
Solve
x2 - 36 = 0
x = -6 and 6
a function that can be written in the form f(x)=a(x-h)2+k, where a is not equal to zero
a quadratic
solve.
-4x - 2y = -12
4x + 8y = -24
x = 6
y = -6
how is a matrix represented & classified?
represented by a capital letter and classified by its dimensions
how many outputs to each input in a function is possible?
one
x2 -16x + 64 = 100
x = 18
x = -2
what is the axis of symmetry
a line that divides a parabola into mirror images and passes through the vertex
what is a system of equations
a set or collection of equations that you deal with all together at once
what is a rectangular array of numbers written within brackets?
a matrix
True or False:
Linear data has constant first differences.
true
x2 + 8x + 16 is an example of what
perfect square trinomial
what is the set of all x-values
domain
solve.
-9x - 9y - 9z = -72
6x - 2y + z = 66
5x - 9y - z = 66
(11,-1,-2)
True or False:
To add or subtract matrices they must have differing dimensions
false; they must have the SAME dimensions
how is an imaginary unit represented and defined as?
represented as i, defined as √(-1)
factor 4x2 - 12x + 9
(2x-3)2
a transformation that flips a graph of a function over the x or y axis
reflection
solve.
4a + b +3c = 31
4a + b = 25
5a - 2c = 26
a = 6
b = 1
c = 2
solve.
[3 5 9] + [7 10 2]
[10 15 11]
what are complex conjugates?
two complex numbers in the form of a+bi & a-bi
finish the statement
if the product of two expressions is zero, then...
... one or both of the expressions equal zero
identify h and k:
g(x)=(x+5)+1
h = -5
k = 1
solve.
-4x - 5y - z = 18
-2x - 5y - 2z = 12
-2x + 5y + 2z = 4
(-4,0,-2)
identify a14.
A = [1 4 3 8]
a14 = 8
what does "completing the square" mean?
to solve quadratic equations by using square roots