4.2.8 AP calculus Exam Integration limits

[karush]

View attachment 9346

ok I posted a image to avoid any typos but was wondering why the question has dx and options are in dt

I picked C from observation but again that was assuming f was a horizontal line of which it could be something else
that way the limits stay the same but the area is cut in halfopinions, suggestions, ...

the heffty beta version of the pdf is here
https://documentcloud.adobe.com/link/track?uri=urn:aaid:scds:US:8f27948c-3886-40ab-9586-415cae96da97

 

[skeeter]

let $x = \dfrac{t}{2}$

proceed with the substitution...