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Unit 2A Vocabulary

Name: ___________________________________
Date: ________________ Period: _____________
Worth +5 Points on today's test! Due by 10/12/18
Across
The ________ of a line segment is the point that divides the segment into two segments that have the same length. (p. 9)
A line, ray, or other figure that passes through the midpoint of a segment is a segment ________. (p. 9)
The ____ is the vertical change from point A to point B, and can be expressed as the difference y2 - y1. (p. 193)
The Pythagorean Theorem states that a^2 + b^2 = c^2, where a and b are the lengths of the legs of a right triangle and c is the length of the ___________. (p. 8)
We can locate the endpoint of a(n) _______ if we know one endpoint and the midpoint of the _______. (N #2-4)
The _____ of a straight line in a coordinate plane is the ratio of the rise to the run. (p. 193)
If two nonvertical lines are _____________, then the product of their slopes is -1. (p. 194)
The ___ is the horizontal change from point A to point B, and can be expressed as the difference x2 - x1. (p. 193)
A(n) ________ line has a slope that is undefined. The equation is written as x = n, where n is any real number. (N #2-1)
Perpendicular lines have slopes that are opposite ___________, which means that the product of the slopes will be -1. (p. 195)
The midpoint M of line segment AB with _________ A(x1, y1) and B(x2, y2) is given by M[(x1 + x2)/2 , (y1 + y2)/2]. (p. 11)
Down
In the figure on page 9, the ____ marks show that PM = MQ. Therefore, M is the midpoint of line segment PQ and line l bisects line segment PQ.
A vertical line has a slope that is _________. (N #2-1)
A horizontal line has a slope of ____. (N #2-1)
In slope-intercept form (y = mx + b), the 'm' is how you '____.' (N #2-1)
If two nonvertical lines are parallel, then they have _____ slopes. (p. 194)
A(n) __________ line has a slope of zero. The equation is written as y = b, where b is your y-intercept. (N #2-1)
The Pythagorean Theorem states that a^2 + b^2 = c^2, where a and b are the lengths of the ____ of a right triangle and c is the length of the hypotenuse. (p. 8)
________ lines have equal slopes. So a line parallel to y = 5x + 1 will have a slope of 5. (p. 194)
The slope m is equal to (y2 - y1) / (x2 - x1). This is the slope ______. (p. 193)
The _________ Formula: The ________ between two points (x1, y1) and (x2, y2) on the coordinate plane is √[(x2 - x1)^2 + (y2 - y1)^2]. (p. 8)
You can use the Distance Formula to apply the ___________ Theorem to find the distance between points on the coordinate plane. (p. 8)
Parallel lines have the same slope (m) but different y-_________ (b). (N #2-1)
Distance is always _________! (N #1B-7)
In slope-intercept form (y = mx + b), the 'b' is where you '_____.' (N #2-1)