Answer:
The slope is 1 and the y intercept is 1
Answer:
Direct Variation Use y=kx. Means “y varies directly with x.” k is called the constant of variation. “y varies inversely with x.” k is the constant of variation.
Answer:

The slope can be founded with this formula:

And replacing we got:

And the best answer for this case would be :

Step-by-step explanation:
For this case we have the following two points given:

The slope can be founded with this formula:

And replacing we got:

And the best answer for this case would be :

You see how these 2 angles marked are both inside the 2 parallel lines?
And they are on opposite side of the transversal, the line crossing the 2 parallel lines?
These 2 angles are alternate interior angles and they are equal, I think you can do the last part by yourself.