the y intercept does not change.
you did a good job in putting the 1 under-2. since slope represents rise over run. but think about which way the slope is going to go now. instead of 1 rise for 1 run, it is now -2 rise(which means it goes down instead of up) for 1 run. Let me know which answer you think is correct and I'll let you know if your right.
