A linear function that represents the number of video games purchased at an electronics store is compared to a different linear function that represents the amount of money the store made that day. Describe the key features of the functions that are needed to determine if these lines intersect.

Question

Mercury · Answer

thoughts?

in order for two graphs to intersect, do their slopes need to be the same, or different? what about the y-intercepts, same or different?

if you're having difficulty, try sketching a few scenarios to compare what happens when the slopes/y-intercepts of two graphs are the same/different, and whether they intersect as a result