Which point is directly above (4, –1)?\
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For which pair of functions is (gof)(a)=|a|-2?

Astuntman jumping off a 20-m-high building is modeled by the equation h=20-5t^2, where t is the same in seconds. a high-speed camera is ready to film him between 15m and 10m above the ground. for which interval of time should the camera film him?

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