geometry question

Question

Name some real-life situations where graphing could be useful.
Discuss your ideas and analyze the ideas written by your classmates.
Name some real-life situations where finding the coordinates of the
midpoint of a line segment could be useful.

Answer 1

 Graphing is useful in all sorts of real life situations. It allows you to see data as not only just numbers, but visually for easy comparisons. For example, you could use a line graph to track how your cell phone usage changes over a year, how your expenditures vary month to month, or how fast a child grows over a decade. Sometimes, real life data does not fit a perfect line pattern, so  we can try to superimpose what's called a best fit line over it and see if there's a correlation. For example, if you wanted to find out the relationship between  how well a group of high school teenagers do in school and how much they watch TV, you would graph one factor against the other and find thebest straight line that fits over the pattern. If the line has a positive slope, we call that a positive correlation; if it has a negative slope, then we call that negative correlation. 

 

For finding the midpoint of a line, there are all sorts of practical uses for that as well. You could use it to find the center of gravity of a painting so you know where to hammer the nail to center and hang it straight, or where 2 friends that live apart could meet so that both drive the same distance, for instance.