how do you grah an equation

Question

how do you graph any equation

 

Answer 1

Hi Arthur--

 

First, draw x and y axes perpendicular to each other, and number the axes 1 - 10. (I'm using those numbers because you didn't specify what the equation was--if you need bigger numbers, go for it.)

 

Then, take your equation, whatever it is, and plug in values for x and y.  For example if your equation is:

 

x + 1 = y,  make a list of possible x values--even just 2 is enough--and plug each one into the equation to get its corresponding value.

 

So if you plug in a 2 for x, then y comes out as 3. (Because 2 + 1 = 3.)  So your first point in this case would be the ordered pair (2,3).

 

Plug in another x value, find its corresponding y value, plot the ordered pair.

 

Then draw a straight line through the two points, extending "forever" in either direction.

 

You've just graphed an equation. :-)

 

Try it with different equations, too.

 

Hope this helps!

 

Matt