Across4. the lowest value in a set of numbers through the highest value in the set 7. mathematical process 8. the horizontal and vertical number lines used in a graph 9. a model based on a ratio 11. a graph that uses bars to display data 12. the most found numberDown1. the positions of a single digit in the whole number 2. a network of lines used for locating points 3. any symbol that could represent a number 5. the use of rounding to determine a reasonable answer 6. graph that displays data using line segments 10. average