Physics can feel inscrutable to students; this lesson helps them understand a graphing problem by analyzing their own ...

The graphs above, \(y = 2x + 1\) and \(y = 2x - 2\) have the same gradient of 2. The lines are parallel. State the equation of a line that is parallel to \(y = 3x + 7\). To be parallel, two lines must ...

There are many purposes that spots and stripes serve in nature, but how they form has been more of a mystery to scientists.

How accurate you need to be when you measure depends on the situation. To measure and draw well, you need to know how to use a ruler and understand the different units of measurement, such as ...