1.1. The graph below shows the curve with equation $y=tan(x+50^{\circ})$, in the interval $-180^{\circ}\leqx\leq360^{\circ}$.

A student states that the curve could also have the equation $y=tan(x-130^{\circ})$.

Is the student correct? Give a reason for your answer.

1.2. For the graph shown in part (a), find the coordinates of all the points of intersection between the curve and the coordinate axes within the given interval.

1.3. Find a different example of an equation that represents the same curve, $y=tan(x+50^{\circ})$.