# Question #8a759

##### 1 Answer

a.

b.

c.

#### Explanation:

For a., a horizontal line means that the line has a zero slope and thus the equation for this line is

For b., you must use the point-slope formula:

Since the line must be parallel to the line

We can now substitute for the point-slope formula:

We can rewrite the equation in

For c.

First we find the slope using:

We know that:

Thus:

Now we can use the point slope formula to find the equation for this line using our newly found

In