Posted by **maryk** on Sunday, September 13, 2009 at 8:28am.

I am trying to solve 5x+y=30 - this is what I have completed so far.

5x+y=30

-5x =30-5x

y= 25x

so the points to plot would be -5,25 ? I do not think is correct - please help

- algebra -
**Sharon**, Sunday, September 13, 2009 at 8:34am
Start with an x column and next to it have a y column so for every x answer you have there will be a corresponding y answer. For example start with assigning x=1, plug it in the equation and find out what y equals. Then assign x=2 then plug it in and find out what y is, and so on and so on until you have a good graph representation of what the answer looks like. So, you will have a multitude of x and y answers. Hope this helps

- algebra -
**MathMate**, Sunday, September 13, 2009 at 8:52am
5x+y=30 is a single equation with two variables, which means that it gives a relationship between the variables.

In this case, the points that satisfy the relationship form a line.

You can reorganize the equation to read:

5x+y=30

y=30-5x

As sharon suggested, make a table of values of x and y. Designate values of x (say from -5 to +5) and calculate the corresponding values of y. Plot these pairs of values, or points, on the graph and you should obtain a straight line if there are no errors. For example:

x y

-5 55

-4 50

-3 45

...

5 5

## Answer This Question

## Related Questions

- Math - The graph of the equation y=4-x consists of all the points in the ...
- calculus - Please help me solve. I think increase = concave up and decrease = ...
- Algebra - Plot the following points on the given rectangular coordinate system ...
- Calculus - The rate of performance is given by dN/dt=1/(2sqroot(t+1)) where N is...
- algebra - graph each of the following equations below using their intercepts?. ...
- Advanced Algebra - 25x^4-25x^2+6=0 solve type an exact answers using radical and...
- algebra - plot points (0,6) and (-3,5) plot points (0,0) and (3,1) how do i ...
- math, correction - the equation is and directions are: graph x-y=-2 so then the ...
- Algebra - Can someone tell me if these problems have the right answers? I am ...
- algebra - solve the system by graphing x+y=4 y=2x+1 I think these are the kind ...

More Related Questions