3x+2=50
subtract 2 from both sides
3x=48
divide both sides by 3
x= 16
so 16 friends went to his party
Answer:
B
Step-by-step explanation:
Parallel lines never touch. A is an intersecting line C is perpendicular and D is just a line.
Answer:
The last image (The one going through points (4,1) and (8,2))
Step-by-step explanation:
If the side length is y, and the perimeter is x, x is equal to that value times 4. This means the table of points would look like this:
x y
4 1
8 2
12 3
And so on. The only graph that is going through these points is the last one. The third graph is wrong because it's the opposite, (1,4) instead of (4,1), and the perimeter will be greater than the side length.