You divide the difference in y-coordinates by the difference in x-coordinates. Or whatever the variables are.
If the cordinates of the two point are (a, b) and (c, d) , then:
Rate of change is "rise"/"run" = (b - d)/(c - a) = (d - b)/(a - c)
You use rise/run, so you do rise/run (example numbers) 3/-2=-3/2
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a picture graph is an actual picture of the item being graphed and a picto graph is a symbol of the item being graphed
if it is symmetric and centered at the origin, It is can be called an odd function
The answer depends on the experiment. Possible variables are: the substance being fermented, the yeast used, exposure to oxygen, time, sugar levels, alcohol levels, temperature. Any of these can be independent variables. The sugar and alcohol levels can be dependent variables.
An intervening variable is an internal state that is hypothetical in empirical research. It explains the relationships between variables being observed.
An independent variable is a variable which stands independent and is unaffected by other variables. A dependent variable is a variable which is a response to the independent variable, and is usually the factor that is being tested in an experiment.
if the points are already graphed, you can use the slope right triangle method or you can make a table and go from there. You can also use this formula: y2-y1/x2-x1. The y is the y coordinate and the x is the point's x coordinates. If you have an equation in y=mx+b form the slope or rate of change is the number right before the x.(represented by the m in the example)
a picture graph is an actual picture of the item being graphed and a picto graph is a symbol of the item being graphed
They depend on what is being graphed and in the level of detail of the information.
there are three kinds of variables.a variable must be a situation,condition or a factor1.change or manipulated variables.-are the variables that are being tested or changed.2.constant variables.-are the variables that you are not intended to test or study,or the variables to be kept constant.3.responding variables.-are the results of the maipulated variables.
Independent Variables.
If you mean when an equation or data set is graphed, then I can answer. For an equation to be linear (create a line on a graph) it must be in the y=mx+b format, with y being the y-value, x being the x-value, b being the y-intercept (the value of y when x is 0) and m being the constant rate of change, or slope (the change in y/the change in x).
In a controlled experiment, the control variable is the one specific thing that is kept constant to measure the change of the other variables. Those variables are the parameters that are being tested.
The advantage is being given a straight answer, but in a graph it doesn't give you a straight answer, because there is a possibility of data being in between the plotted points.
if it is symmetric and centered at the origin, It is can be called an odd function
It represents every thing that is being graphed, but mostly percentage.
The advantage of using a graph is being able to give more evidence of your work. The disadvantage is there being a possibility of data being in between the plotted points, that you may not even realize.
A function is a relationship between quantities (variables) that occurs when the value of one of the quantities can be given uniquely by specified values of the other quantities. The variables involved can be either independent or dependent. The values of certain variables are fixed while others are allowed to change. The fixed variables are called the independent variables, and the dependent variables are those that change in response to the given value of the independent variable. A function therefore relates dependent variables to independent variables, the only restriction being that each value of the dependent variable is given uniquely by one, and only one, value for each of the independent variables.