What is the gradient of the graph y = 3x^2 + 5x + 2, when x is 4?
To find the gradient of the graph, we need to differentiate the equation. So if y = xn ==> the derivative dy/dx = nxn-1 This means that dy/dx = 6x + 5 for this equation So the gradient (dy/dx) when x = 4 is: 6*4 + 5 = 29
