Graphing help.

Question

I'm decent at math. Although I haven't had a math class since I was a senior in high school, so about three to four years ago. I was on a good pace of figuring this out until last night I messed up the dependent Y boxes and the X independent. I'm not for sure what they're called. I just need help trying to figure out what goes in those boxes because I have tried everything. I know how to graph it, it's just the point pf finding what goes in the boxes. 

Answer 1

First an equation example:   y = x + 3  (represents a line).

 

X is independent because you can use any number you want (including negative numbers, zero, etc.)

 

Y is dependent because it is DEPENDENT on what you put for X.

 

To plot, put a value in X, lets say 2:

y = 2 + 3, so y = 5.  So one POINT on the LINE would be (2,5) - two is the X coordinate (two units over), and five is the Y (five units up). 

 

Put another value in for X, lets say 0:

y = 0  + 3, so y = 3, So the POINT would be (0,3) - zero is the X coordinate (NO units to the left or right), and three is the Y (three units up).

 

Once you have TWO POINTS you can make a straight line between them, in this case a straight line between (0,3) and (2,5).  Use a ruler to "connect the dots". 

 

That's it.  You just graphed the equation y = x + 3.  I'm assuming the "BOXES" are the number values for X and Y.  Whatever you put in for X, it will give you an answer for Y.  Then just plot the x/y points and connect.

 

Answer 2

Sorry, I'm a little unclear on the what you mean by "boxes".  Can you describe the problem more?  I assume you have something like y = 2x +3.  Are their "boxes" where the y and x are?  If so, you can choose any number you want for x. It is independent(doesn't need anyone else). The y is independent, so you will get a number after you plug in something for x and simplify.