Which of the following are always true on a graph representing a proportional relationship? Select all that apply
1. It includes the origin.
2. It goes up and to the right.
3. It goes down and to the right.
4. It’s a straight line.
5. It’s horizontal.
6. It’s vertical.

Tell me how you got the it use the figures to answer questions 1and 2. in each diagram, line k is parallel to line l, and line t intersects lines. 1. based on the diagrams, what is the value of x? 2. how would you verify your answer for x?

Ascientist wants to use a model to present the results of his detailed scientific investigation. why would a model be useful? a )because the model makes the concepts easier to understand b) because the model is easy to put together and to use c) because the model prevents other scientists from asking questions d) because the model requires the audience to pay full attention to it i don't know what to choose because between a and d a is much more likely than d because it only wants to get the attention of the audience. i'm confuse.

A50% increase followed by 33 1/2% decrease