Sorry I'm in high school.. but according to my physics class, the instantaneous speed is when t (time) is 0, or whatever you'd use (like x).. anyways, when t=0, the instantaneous speed would be 3 ft/s, and the instantaneous acceleration is 0.
Answer:
-4
Step-by-step explanation:
Step-by-step explanation:
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The answer is D
f(x) = 3x + 1
