From the image, Jason is given the following facts about the lines in the diagram:

1. $\overleftrightarrow{AK} \parallel \overleftrightarrow{KB}$
2. $\overleftrightarrow{AK} \parallel \overleftrightarrow{EP}$
3. $\overleftrightarrow{AK} \parallel \overleftrightarrow{CB}$

We need to determine which other statements can be concluded as true. The available choices are:

1. $m \angle EJM = 90^\circ$
2. $\overleftrightarrow{KB} \parallel \overleftrightarrow{DM}$
3. $\overleftrightarrow{KB} \perp \overleftrightarrow{CB}$
4. $m \angle JFB = 90^\circ$

Analyzing the Diagram:

• The lines $\overleftrightarrow{AK}, \overleftrightarrow{EP}, \overleftrightarrow{KB}, \overleftrightarrow{CB}$ are all parallel to each other, implying that these are part of a rectangular grid.
• Perpendicularity of other lines can be inferred if they intersect the parallel lines at right angles.
• $\overleftrightarrow{KF}$, which is shown as perpendicular to $\overleftrightarrow{AK}$, suggests that other lines parallel to it may also be perpendicular to the parallel lines of $\overleftrightarrow{AK}$.

Conclusion of Facts:

1. $m \angle EJM = 90^\circ$ is correct because the perpendicularity implies that lines intersect at right angles.
2. $\overleftrightarrow{KB} \parallel \overleftrightarrow{DM}$ is correct because these lines appear to run vertically and are parallel to each other.
3. $\overleftrightarrow{KB} \perp \overleftrightarrow{CB}$ is incorrect since these two lines are parallel.
4. $m \angle JFB = 90^\circ$ is correct since the diagram shows a right angle at point $F$.

Final Answer:

• $m \angle EJM = 90^\circ$
• $\overleftrightarrow{KB} \parallel \overleftrightarrow{DM}$
• $m \angle JFB = 90^\circ$

Would you like further clarification on any of the conclusions?

Here are 5 follow-up questions:

1. What is the relationship between parallel and perpendicular lines in this diagram?
2. Can Jason conclude any other angles are right angles in this configuration?
3. Why is $\overleftrightarrow{KB} \perp \overleftrightarrow{CB}$ an incorrect conclusion?
4. How does the perpendicularity of $\overleftrightarrow{KF}$ affect the rest of the diagram?
5. Can any other pairs of lines be identified as parallel or perpendicular based on the given information?

Tip: When analyzing geometric diagrams, parallel and perpendicular relationships help simplify complex configurations by grouping lines into predictable patterns.