Before calculating ... along the line from left to right, you would be walking downhill, so the gradient will be negative. Then, choosing two random points on the line and using the same method ...

Calculating the direction of a line by using bearings is also a longstanding ... angles and distances should be close to scale). Label the points, the starting direction, and the interior angles.

What’s in an equation? Letters and numbers and odd symbols ... This arose in part from the problem of trying to calculate the slope of a curved line at any given point. It’s a question that ...

Before students are presented with the quadratic formula, they’re taught a simpler method to solve certain equations. For simplicity, we’ll consider an equation where a = 1. Figuring out the ...