The phrase "reaching its apex" is correct and can be used in written English.
It means reaching the highest point or pinnacle. Example: The company's success is reaching its apex with record-breaking sales and profits.
Perhaps it's a reaction to the EDM-level house bubble reaching its apex.
But for some small fraction of those students, the tension is only now reaching its apex.
Although the Buccaneers were in control early, the rating did not suffer, rising to an early peak of 41.5 from 7 30 to 8 p.m. Eastern, then reaching its apex, a 42.4, from 10 to 10 18 p.m.
At Christie's, "Au Parc Monceau" (In Monceau Park), a garden view signed by Monet in 1878, was the right subject painted at the right time, when early Impressionism was reaching its apex.
Shell collecting as it is understood today, in the manner of coin, stamp, and china collecting, is of more recent origin, reaching its apex in England during the late 18th and early and middle 19th centuries.
But the second major new factor in today's market the Internet seems far from reaching its apex.
As the doll reached its apex, it crossed paths with a sparrow.
But as the ball reached its apex, it began backtracking on a diagonal line.
When Fabio Luisi was named the Metropolitan Opera's principal conductor, in 2011 — after James Levine's medical via dolorosa reached its apex — it seemed that the house would be his for taking.
In Emilia-Romagna, ragù's place of origin (and one of the regions of Italy where cuisine reaches its apex), it is almost invariably served over fresh egg pasta.
But it reached its apex in 2001 -- the same year that Destiny's Child released "Survivor" and "Bootylicious", and a year after airwaves were inundated by mega-single "Independent Women Part 1". .
