Hi there, I'm a little bit lost during one part of this example.

Let'a start with an example. If y = fix] = x2 5x + 1 what is the derivative of 3: with reapect to x? x} = 2x 5 What does this tell US about the gradient of y? FirStJ what ia the gradient when x = 3? When it = -3, T13] =2 X -3 5 So the gradient of the curve 1; at x = -3 is -'| 'i. What ia the gradient when x = 2? When x = 2, 1\"I[2]=2>