Algebra Vocabulary
Transformation Vocabulary
Transformations
Solving Equations
Geometry
Linear Relationships
100
The number a variable is multiplied by (usually written in front)
A coefficient
100
Changing the position, size or orientation of shapes on a coordinate plane.
Transformation
100
Point P, located at (-3, 4) is reflected across the x-axis. What are the coordinates of P'?
(-3, -4)
100
Solve for x.
x - 7 = 21
x = 28
100
The sum of the angles in a triangle
180o
100
In the equation y = mx + b, what does "m" stand for?
slope
200
Any number in an algebraic expression that does not contain a variable.
A constant
200
The original figure before transformation is called ...
The pre-image
200
Point L located at (3,6) is rotated 180 degrees about the origin. Determine the coordinates of point L'.
(-3, -6)
200
Solve for x.
2x + 8 = 10
x = 1
200
Two of the interior angles of a triangle are 35o and 75o. Determine the measure of the other interior angle.
70o
200
How do you determine the slope of a line?
(rise)/(run) or (delta y)/(delta x)
300
A letter or symbol used to represent a number in an algebraic expression
A variable
300
Figures that are the same shape, but different sizes (created by dilations)
Similar
300
Point Q located at (-2, 5) is translated 3 units left and 2 units up. Determine the location of point Q'.
(-5, 7)
300
Solve for x.
5(2x - 3) = 15
x = 6
300
What is the measure of angle 5?
115o
300
What is the slope of a line that passes through the points
(2, 4 1/2) and (6, 12 1/2)
m = 2
400
Getting a variable alone on one side of the equation.
Isolate
400
Sliding a figure right or left, up or down on the coordinate plane
Translation
400
Point R located at (8, -6) is dilated by a scale factor of 1/2. Determine the coordinates of R'.
(4, -3)
400
Determine the number of solutions.
-3(4x - 5) = 15 - 12x
There are infinitely many solutions.
400
Determine the value of x.
x = 7
400
Determine the slope-intercept equation of the line
y = -2x + 5
500
The terms that have the same variable to the same degree.
Like terms
500
A transformation that changes the size of an object by scale factor
A dilation
500
The area of triangle ABC is 32 square units. Triangle ABC is translated 5 units right and reflected across the y-axis. What will be the are of triangle A'B'C'?
32 square units
500
Determine the number of solutions:
8 + 0.5(6x + 2) = -7x +4 + 10x
There is no solution.
500
Determine the value of x
x = 4
500
What is the equation of a line that passes through the points (0, 6) and (5, 0)?
y = -6/5 x + 6