auto_diff_2

function [gradients] = auto_diff_p2(x, y, predictions)

% Initialize the gradient vector
gradients = zeros([1, 3]);

% --------------- Edit From Here ---------------
a = 2*(predictions -y).*(x.^2);
b = 2*(predictions -y).*x;
c = 2*(predictions -y);

gradients(1) = mean(a);
gradients(2) = mean(b);
gradients(3) = mean(c);

end