Give the function f (x) = 3 ^ x - 4x determine the average rate of change from x = 1 x = 2

Question

Mathematics

Mekhi Rosario

21 November, 03:23

Give the function f (x) = 3 ^ x - 4x determine the average rate of change from x = 1 x = 2

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Answers (1)

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Shayna · Answer 1

2

Step-by-step explanation:

Given the average rate of change formula, we must first find the x and y values of the function.

We are provided with the two x values, 1 and 2. We now need to find the output, or y.

ƒ (x) = 3^x-4x

ƒ (1) = 3-4=-1

ƒ (2) = 9-8=1

Then, we use the formula (ƒ (2) - ƒ (1)) / x2-x1 (subscripts here, in case you multiplied) which gets us 2/1, or 2. Therefore, the average rate of change (ARC) is 2. I believe you just need to find the output and subtract if they are exactly one whole number apart, but don't quote me on that.