B I think. Not 100% sure tho
Answer:

Step-by-step explanation:
Slope intercept formula is y=mx+b
(m) is slope
(b) is the y intercept
We'll find slope first.
slope formula is

y2 and x2 are the y and x values of the second equation and y1 and x2 are the y and x values of the first equation.
So we just put the given values into our equation.

Simplify

Now we put this into our y=mx+b
y=0/-3x+b
now we need the (b)
to do this we take the values of one of the coordinates (doesn't matter which) and replace the (y) and (x) in our equation with them.


Solve
1=0+b
b=1
Put this in our formula

Hope this helps! If you have any questions on how I got my answer feel free to ask. Stay safe!
Answer:
15
Step-by-step explanation:
I THINK THIS IS CORRECT
Answer:
<h3>5 feet</h3>
Step-by-step explanation:
The set up will give a right angles triangle with:
length of the ladder as the hypotenuse h = 13 foot
The distance from the base of the house to the top of the ladder is the opposite side (y) = 12 feet
The distance of the base of the ladder from the base of the house wil be the adjacent side (x)
Using the pythagoras theorem to get x:
h² = x²+y²
13² = x²+12²
x² = 13²-12²
x² = 169 -144
x² = 25
x = √25
x = 5 feet
Hence the distance of the base of the ladder from the base of the house is 5 feet long