CB biology question?

<p>[SAT</a> Subject Test - Biology E/M Practice Tests](<a href=“The SAT – SAT Suite | College Board”>The SAT – SAT Suite | College Board)</p>

<p>PLEASE PEOPLE…EVEN IF I UNDERSTAND THIS SECTION IN BIOLOGY… I DON’'T GET THIS QUESTION PLEASE EXPLAIN IT TO ME. I WILL REALLY APPRECIATE THAT…</p>

<p>you need to find the interval with the highest slope (the steepest one)</p>