The graphs of \(y = 2x + 1\) and ... Gradients can be: positive – going up negative – going down zero - no change (a flat line) Steep lines will have high gradients like 5 or -8 and equations ...

Find the equation of a straight line that is perpendicular ... This means the gradient of the perpendicular graph is \(-\frac{1}{3}\) (by finding the negative reciprocal). \(y = -\frac{1}{ ...