Graphing linear equations.

Question

So the problem is x+2y=4

Answer 1

The best way to solve problems like this that involve linear equations is to first solve for y and achieve slope-intercept form.

1. y = mx + b

So in your case, that would be:

1. y = -1/2 x + 4

Now that the equation is in the slope-intercept form you can make a table of X and Y values, plot the x,y pairs on a graph sheet or demos or graphing calculator and connect the dots!

Answer 2

Pick three x values and determine the corresponding y values.

Plot he three points.

Draw a intersecting line.