Mathematics: Given the tunction f(x)= - x^2 + 4x - 3 ,find the rate of chango over the interval [-2,7] (you can take the negative leading coefficlent off for reg ed if you want) *

Given the tunction f(x)= - x^2 + 4x - 3 ,find the

dontcareanyonemo

12.04.2022

-1

Step-by-step explanation:

Given function: f(x)=-x^2+4x-3

$\implies f(-2)=-(-2)^2+4(-2)-3=-15$

$\implies f(7)=-(7)^2+4(7)-3=-24$

$\textsf{Average rate of change}=\dfrac{f(b)-f(a)}{b-a}\quad\textsf{for}\:a\leq x\leq b$

Therefore, average rate of change over the interval -2 ≤ x ≤ 7

$\implies \textsf{Average rate of change}=\dfrac{f(7)-f(-2)}{7-(-2)}=\dfrac{-24-(-15)}{9}=-1$

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lin550

10.03.2021

C 10% Condition.

Step-by-step explanation:

Let's Look at them one by one.

A: Large Enough sample condition.

this is met because 600 students is a good number to carry out a surwey.

B: Randomization, 600 incoming freshman are definitely random.

C: we are left with C so the answer is C.

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