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Solving 2&3 Variable Equations
Matrix
Quadratic Equations
Polynomials
Probability
100
The ______ method is fastest if one of the equations already has x or y by itself. answer:
Substitution
100
This as an example of a _x_ Matrix. [1 0 0] [0 1 0] [0 0 1]
3x3
100
b2-4ac<0 has ___ complex roots.
Two
100
standard form means that the terms are place in ______ order according to their degree.
descending
100
A probability is a way of assigning every event a value between ___ and ____.
Zero and One
200
The initial goal in two or three variable equation is to isolate one ______.
Variable
200
A 2x3 matrix has _ numbers of columns and _ rows?
3 / 2
200
Quadratic equations of type ax2 + bx + c = 0 and ax2 + bx = 0 (c is 0) can be factored to solve for __.
x
200
The zeros of a polynomial are its __ -intercepts.
x
200
probability: the likelihood that an event will occur, expressed as a percentage or fraction When you calculate probability, always be careful to divide by the ____ ______ of chances
Total Number
300
Each equation should have ___ exponents?
0
300
For a 2x2 matrix, the determinant can be calculated by this formula: [a b] [c d] = a x _ - _ x c What variable should (a) be multiplied by and what should (c)?
d / b
300
standard form is ax2 + bx + c = 0, and its solution is given by the quadratic formula which guarantees two real-number solutions, one real-number solution, or two complex-number solutions, depending on whether the _________, b2 − 4ac, is greater than, equal to, or less than 0.
Discriminate
300
Writing the terms of a polynomial in descending order of the powers is _____ form.
Standard Form
300
A probability of ____ for an event means that the event will never happen
0
400
When using the graphing method, one must Make sure both equations are in _______.
slope-intercept form.
400
The __________ is a characteristic number associated with a square matrix.
Determinant
400
Solve 3x2 + x - 2 = 0 for x.
x = -1, (2/3)
400
The graph of a polynomial is a smooth, connected ______.
Curve
400
A probability of ____ means the event will always occur.
1
500
The three methods to solving 2 or 3 variable equations are: answer:
1) addition method 2) substitution method 3) graphing method
500
Dilation is a transformation in which a figure is _______ or _______.
Enlarged or reduced
500
Solve 3x2 + 5x = 0 for x.
x = 0, -(5/3)
500
Sometimes the zeros of a polynomial can be determined by factoring or by using the ______ Formula
Quadratic