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Module 1: Part 3

Spring 2021


Horizontales
Lines that intersect in a special way: the angles form right angles, and the slopes are negative reciprocals of each other; therefore, the product of the slopes of these lines will be -1.
Symbol used in interval notation: designates where the interval starts or stops, but includes the endpoint; therefore, is never used for infinity or negative infinity
These are lines such that the y values are fixed at a particular number, but the x value can take on any value. The slope of these lines are zero.
Verticales
How answers are typically given in solving inequalities: usually involve the use of parentheses and sometimes brackets and always give from the smallest value on the left to the largest value on the right
Symbol used in interval notation. Designates where the interval begins or stops, but does not include the endpoint ; therefore it is always used for infinity or negative infinity.