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Algebra 2 Ch. 3


Slope-Intercept form The form y = mx + b is the slope-intercept form of an equation for a line.
The y-intercept The y-intercept b, is the value of y when x is 0 and it corresponds to the initial value of the dependent variable.
Standard form When A and B are not both zero, the equation Ax + By = C is called the standard form of an equation for a line.
The x-intercept The x-intercept is the value of x at the point where a graph crosses the x-axis.
Point Slope Theorem If a line contains (x1, y2) and has slope m, then it has equation y - y1 = m(x - x1).
|x| Greatest Integer Symbol |x| = the greatest integer less than or equal to x. ex: |5.65| = 5
Arithmetic Sequence A sequence with a constant difference between successive terms is called an arithmetic sequence. ex: 1,000, 4,000, 7,000, 10,000, 13,000 has a constant difference of 3,000
Linear Combination A combined equation Ex: 20P = 32L is a linear combination of P and L
Created by: Nickp2396