The gradient is the measure of slope of a line ... is 1 Write the equation in the form \(y = mx +c\) where \(m\) is the gradient (3), and \(c\) is the \(y\)-intercept (1). The equation is ...

Writing \(y = x^2 – 6x + 4 \) in completed square form gives \(y = (x – 3)^2 – 5\) Squaring positive or negative numbers always gives a positive value. The lowest value given by a squared ...