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Paladinen [302]
3 years ago
11

Let f(x)=x^2 - 3x - 4 . What is the average of change from x=7 to x=10?

Mathematics
1 answer:
Alisiya [41]3 years ago
3 0
You need to calculate the following expression:

   f(b) - f(a)                                          [(10)^2-3(10)-4]-[(7)^2-3(7) -4]
 --------------- , which in this case is:   ------------------------------------------
       b - a                                                              10-7



Be sure to do the calculations inside each set of square brackets separately BEFORE attempting the subtraction in  [(10)^2-3(10)-4]   -   [(7)^2-3(7) -4]

By the way:  You mean "average rate of change," not "average of change."
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Answer:

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Step-by-step explanation:

<u>Step 1:  Distribute </u>

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2 years ago
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Bingel [31]

Answer:

Simplifying

x = 11

Step-by-step explanation:

Simplifying

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-27 + 6x = 39

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Add '27' to each side of the equation.

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Divide each side by '6'.

x = 11

Simplifying

x = 11

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