Need solved and graph

Suppose that consumption, investment , government spending taxes and disposal income are given by the following equations C=100+0.5Yd I=30040r G=150 and T: 100 Where r , y and YC1 denote the interest rate, the Income and the disposable income respectively 1. Derive the IS curve and Graph it . 2. Suppose that the government wants to nance a new higher by increasing taxes to 200 Derive the new IS curve and Graph it . Does the IS curve shift to the left or to the right