Answer:
almost! for the ones you're missing:
for y=1/2x-3 slope is 1/2, y intercept is -3, x intercept 1/2, and it is linear.
for y=-2x the slope is 2, y intercept would be zero
for the ones who don't have any y intercept defined, it would automatically be zero by the way your teacher might take points off for that
Answer: B
Step-by-step explanation:
For this problem, to solve for x, you want to move all like terms to one side.

Now that you have moved like terms to one side, you can directly add and subtract to combine like terms.

x=-4
The answer to your question is 161,000.