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AnielMath8Unit1B-4
Math 8 Unit 1B -4 Vocabulary
Term | Definition |
---|---|
Alternate Interior Angles | Two interior angles that lie on opposite sides of the transversal. |
Transversal | A line that cuts across two parallel lines, intersecting each one. |
Straight Angle | The two rays that make an angle form a straight line. |
Dilation | A point P on line OP moves to another point along line OP either further away or closer from the center O and by a positive scale factor of r. |
Similar | A sequence of rigid transformations and dilations that move one figure so that it fits exactly over another figure. |
Slope | The quotient of the vertical distance and the horizontal distance between any two point on a line. |
Linear Relationship | A relationship between two quantities where one quantity has a constant rate of change with respect to the other. |
Rate of Change | It tells you have much y changes when x changes by 1 in a linear relationship. |
Solution to an Equation with Two Variables | Any pair of (x,y) that can be used in place of the variables to make the equation true. |
Vertical Intercept | The point where the graph crosses the vertical axis. |
Constant Term | In an expression like 5x + 2, it is the number 2 because it doesn't change when x changes. |
System of Equations | A set of equations where you want to find a solution that makes all the equations true at the same time. |