Mathematics 1 Deneme Sınavı Sorusu #1357099

15/4

Yanıt Açıklaması:

The average velocity is defined by v_av=(f(t₂)-f(t₁))/(t₂-t₁). So we have to calculate f(t) for t=1 and for t=3.

f(t)=5t²-2t+1

f(3)=45-6+1=40

f(1)=5-2+1=4

Then, v_av=(f(t₂)-f(t₁))/(t₂-t₁)=(40-4)/(3-1)=18 for interval [1,3].

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