# How do you graph 2x+5y=10 by plotting points?

Jul 3, 2016

Write the equation as $y = m x + c$
Choose x-values and work out y-values

#### Explanation:

It is difficult to find points when the equation is in this form.
Change it into $y = m x + c$

Then you can choose any x-value and work out its corresponding y-value. It is a good idea to have about 5 points, two with negative x-values, x= 0 and two with positive x-values.

This will give you a nice spread and you will easily be able to see if there are errors, because the points will not all lie in a straight line as they should.

$2 x + 5 y = 10$
$5 y = - 2 x + 10 \text{ " rArr } y = - \frac{2}{5} x + 2$

When x = -5, y = 0, When x= 0, y = 2 etc