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# Speed, Graphs, Accel

### Speed, Graphing, and Acceleration

TermDefinition
independent variable the variable graphed on the x-axis
dependent variable the variable graphed on the y-axis
slope the formula (y2-y1)/(x2-x1) that tells you how much the variables of your graph are changing with respect to each other
key used when you graph more than one set of data to distinguish between them
scale the interval that you use to label the x and y axes
speed how quickly the position of an object changes from start to end point
distance an interval of length without regard to direction
position an interval of length that includes direction
time the interval between two events or a specific instant
instantaneous speed the speed of an object at a specific moment in time
average speed the speed of an object across a beginning and end point
interpolation estimating the location of a data point that is in between two given data points in a data set
extrapolation estimating the location of a data point that is beyond the given data points in a data set
directly proportional when two variables increase or decrease together with a constant ratio and the graph of their relationship is a straight, positive line
inversely proportional when one variable increases, the other decreases with a constant ratio and the graph of their relationship is a straight, negative line
strong relationship when two variables directly impact each other in a significant way and the graph of their relationship shows a definite shape
weak relationship when two variables seem to impact each other but the graph of their relationship appears to be scattered
acceleration how much an object's speed or velocity changes in a certain amount of time
velocity speed with direction
instantaneous acceleration the acceleration of an object at a specific moment in time
average acceleration the acceleration of an object across a beginning and end point
Created by: holtzmanscience