Equations
Solve for the variable:
5x+10=-25
x=-7
Point B is at (5,6). What are the coordinates of B' after the translation
(x,y)->(x-3,y+2)
B' (2,8)
What is the term for 2 angles that share a common side and add up to 180 degrees?
Supplementary Angles
What kind of line is represented by the equation y = 5?
Horizontal Line
Solve for the variable:
6(y-4)=-24
y=0
Point C is at (-5, 5). What are the coordinates of C' after a reflection in the x axis?
C' (-5, -5)
If angle 1 measures 80 degrees and its corresponding angle is angle 5, what is the measure of angle 5?
80 degrees
What kind of line is represented by the equation x = -2?
Vertical Line
Solve for the variable:
-12a+9a+5a=26
a=13
Point Z is at (8, -2). What are the coordinates after a reflection in the y axis?
Z' (-8, -2)
2 interior angles of a triangle measure 50 degrees and 40 degrees. What is the measure of the third angle?
90 degrees
What is the slope of a line that has points (0, 3) and (3, 6)?
m = 1
Solve for the variable:
8m-20m+10=9m
m=10/21
Point A is at (-3, 4). It is dilated by a factor of k=5. What are the coordinates of A'?
A' (-15, 20)
2 interior angles of a triangle measure 30 degrees and 80 degrees. What is the measure of the exterior angle nonadjacent to the two interior angles?
110 degrees
What makes a line have a negative slope?
Left to right it goes downhill
Solve for a:
5ab=c
a=c/(5b)
Point B is at (12, 15). It is dilated by a factor of k=1/2. What are the coordinates of B'?
B' (6, 7.5)
What is the sum of the interior angles of a 6 sided polygon?
720 degrees
What is the slope of a vertical line?
Undefined