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Algebra Practice-
(x to the second power +9=6x |
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(not a definition but a description)
_No size
-Represented by a dot and a capital letter |
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Algebra Practice-
Solve this system of equations-
{2x-5y=14}
{x-y=1} |
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(not a definition but a description)
-no thickness or width
-length only (straight)
-extends forever
-contains infinite points |
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| Collinear (hint look for a word inside the word) |
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| two or more points on the same line |
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| Coplanar (hint: look in the word) |
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| 3 points in the same plane |
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2 ways to represent this line-
(arrow).-----.(arrow)
A B
A B |
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1. (arrow)--(arrow) 2. (arrow)--(arrow)
AB BA |
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| Another way to represent a line: |
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(arrow)---------(arrow)
t
(a line with a lowercase letter underneath) |
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(not a definition but a description)
-Length and width only
-determined by any two points
-extends without ending |
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| A way to represent a plane (draw one) |
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| A four sided figure and a capital letter inside |
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| Where objects meet or cross in a point |
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| Where do a line and a plane intersect? |
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| In either a line or a point |
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| Where do a line and a plane intersect? |
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| In either a line or a point |
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| When do two planes intersect? |
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Points A and C and all points in between
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A C |
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| How are segments represented? |
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One endpoint (A) extends through (B) and beyond
.------.-(arrow)
A B |
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| How are ray's represented? |
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Have the same endpoints but extend in opposite directions
(arrow)--.---.---.(arrow
C A B
--(arrow) --(arrow)
AB and BC |
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(arrow)---I-I-I-I-I-I-I(arrow)
A 0 B
-3 3
3- (-3) = 6 which = AC
right endpoint minus left endpoint |
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Have equal lengths
2" 2"
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s t u v
-- ~ --
ST = UV |
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A symbol that divides a segment into 2 congruent symbols
.---/---.---/---.
O M S
--- ~ ---
OM = MS |
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| A line, segment, ray, or plane that intersects a segment at it's midpoint |
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| (not as important) Numbers on a number line are in a one to one correspondence with points on any line |
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| SEGMENT ADDITION POSTULATE |
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IF A-B-C THEN SEGMENT AB ADDED TO SEGMENT BC IS CONGRUENT TO SEGMENT AC
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AB + BC .-----.-----.
A B C |
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COORDINATE GEOMETRY- Given A-B-C the coordinate of C is 10, the coordinate of A is 2
AB=AC
(draw and label a diagram) |
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AC= 8
AB= 4
BC=4
Coordinate of B= 6 |
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Given S-T-U, SU= 12 ST= x + 4 TU= 3x-1 x is a real number
(draw a diagram and label all parts including x) |
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x=2 1/4
ST= 6 1/4
TU= 5 3/4 |
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Given G-H-I, GH= 3x+6, HI= 2x(squared) -5x GI= 10
(draw a diagram and give GH and HI |
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| 2 rays with a common endpoint |
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| In an angle what makes the sides? |
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| In an angle what makes the vertex? |
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Divides an angle into 2 ~ Angles
= |
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| (not as important) For every angle, there is a unique measure between 0 degrees and 180 degrees |
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| measures between 90 degrees and 180 degrees |
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| Have a common side and a common vertex but not common interior points |
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ANGLE ADC + ANGLE CDB ~ ADB
= |
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