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The relationship is a matter of cause and effect. An independent variable is given as one upon which another variable depends. So, for example, if you heat a metal pipe, the pipe expands. The amount of expansion is dependent upon the amount of heating that occurs, so expansion is the dependent variable, and the heating, which you may or may not control, is the independent variable. All it means is that if the independent variable ungoes a change, there is an associated and predictable change in the dependent variable. The two are linked inextricably, but one is cause, the other is effect, or to put it another way, you control the change in the dependent variable with input into the independent variable, but it doesn't normally work the other way around.
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How do you separate dependent and independent variables?
I do it by using an "if/then" statement. The variable behind the "if" statement is the independent variable. The variable behind the "then" statement is the dependent variable. Example: y = 3x3 + 4x2 - 6x +1 So if you tried "if y = 2", you're still stuck on your "then" statement. You don't really know what x is, do you? But if you try "if x = 1", then you can determine right away that y = 2. So x is your independent variable and y is your dependent variable.
Is the random variable x equals 1 be stated that the random variable is discrete?
If x = 1 then X is not really a random variable but a constant.
How does the independent variable effect the dependent variable?
Haha are you cheating on your biology homework? Or is it HSPA? Al/geo perhaps? Well I'll help you anyway. It's simple really. The dependent variable 'depends' on the value the independent variable takes for its value.Say you have: y = 3x - 2This is the equation for a straight line right? Well, 'y' is the dep. variable, and 'x' is the indep. variable. So 'x' takes on any value you wish to give it. So if I assign a value of one (1) to x then y HAS to be 3*1 - 2 = 1.So y = 1 ONLY when x has been given its value.Understand?Think of it like this:When you go to a restaurant, you can ONLY get what the restaurant offers on its menu. You can't go to a hot dog joint and say "Hey....gimme a fillet mignon!".......right? Your meal DEPENDS on the menu.....your meal is 'dependent' upon the offerings of that restaurant...and the offerings of the restaurant are like the independent variable.Does that help????
What is 5x plus 16?
Can't really say. X is a variable and untill you define that variable, it can't be answered.
What is a number that is multiplied by the variable in an algerbraic expreesion?
Well, it really depends on the problem. A variable can be multiplied by just about any number.
