How important are the "special features" of a polynomial graph? when would you need to find all of the precise values of special features of the graph of a polynomial function? when would it be okay to estimate these values?

1-for what value of x is line a parallel to line b 2-for what value of x is line a parallel to line b

Anew shopping mall is gaining in popularity. every day since it opened, the number of shoppers is 5% more than the number of shoppers the day before. the total number of shoppers over the first 10 days is 1258 how many shoppers were on the first day?

Given the two similar triangles, how do i find the missing length? if a=4, b=5, and b'=7.5 find a'