Velocity.
It can be just about anything, depending on what you are graphing.
1.) Apropeate title 2.) X & Y axis labeled 3.) Unit you are measuring in(pounds, grams, ect.) 4.) Numbered graph with a continued pattern
They are 1 graphing unit apart.
If Distance is the ordinate(y-axis) and Time is the abscissa(x-axis) then the slope gives the speed. If Time is the ordinate(y-axis) and Distance is the abscissa(x-axis) then the slope gives the Time taken per unit of Distance
Usually time is on the x-axis but it is made specific here that time is on the y-axis. That being the case, a is the reciprocal of the speed. That is, the time taken to move a unit distance (as measured on the x-axis).
Quite simply, it doesn't.
It is the gradient of the line. Pick any two points on the line. Measure the RISE = difference in their heights (distances from the x-axis), and the RUN = difference in their horizontal displacements (distances from the y-axis). The unit rate is RISE/RUN.
(Any unit of length) divided by (any unit of time) is a unit of speed.
(Any unit of length) divided by (any unit of time) is a unit of speed.
The units are whatever you make them! It helps, though if the units are the same on the x-axis (horizontal axis) as well. Unless of course you are skipping from zero to some large number before you start your graph. Anyway, you can make each line one unit, or you can make each line 5 units, or whatever you want! Depends on what you're graphing, but usually for a straight line, you use units of 1
Y = 4 - XThe graph is a straight line. It goes through the point (Y=4) on the Y-axis, and its slope is -1. That means that for every 1 unit it moves to the right, it drops one unit lower. So it also goes through the points (1,3), (2,2), (3,1), (4,0), etc.Now you know that the line goes through the points 4 on the Y-axis and also 4 on the X-axis, it's easy to draw the line. Make it as long as you want ... mathematically, it never ends.
It's called the unit circle. it begins on the positive x axis and goes counter clockwise. You'll learn about it in pre calculus.