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Function Evaluation

Given the function [tex][tex]$f(x)=34(0.86)^x$[/tex][/tex], evaluate each of the following. Round answers to the nearest hundredth as needed.

[tex]
\begin{aligned}
f(-3) & =\square \\
f(-2) & =\square \\
f(-1) & =\square \\
f(0) & =\square \\
f(1) & =\square \\
f(2) & =\square \\
f(3) & =\square
\end{aligned}
\]


Sagot :

Let's evaluate the function [tex]\( f(x) = 34 \cdot (0.86)^x \)[/tex] at the given points and round each result to the nearest hundredth.

1. Evaluate [tex]\( f(-3) \)[/tex]:
[tex]\[ f(-3) = 34 \cdot (0.86)^{-3} \][/tex]
Continuing with the calculations and rounding to the nearest hundredth, we find:
[tex]\[ f(-3) = 53.45 \][/tex]

2. Evaluate [tex]\( f(-2) \)[/tex]:
[tex]\[ f(-2) = 34 \cdot (0.86)^{-2} \][/tex]
After performing the necessary calculations and rounding to the nearest hundredth, we get:
[tex]\[ f(-2) = 45.97 \][/tex]

3. Evaluate [tex]\( f(-1) \)[/tex]:
[tex]\[ f(-1) = 34 \cdot (0.86)^{-1} \][/tex]
Doing the calculations and rounding the result to the nearest hundredth, we obtain:
[tex]\[ f(-1) = 39.53 \][/tex]

4. Evaluate [tex]\( f(0) \)[/tex]:
[tex]\[ f(0) = 34 \cdot (0.86)^0 \][/tex]
Since any number to the power of 0 is 1, we get:
[tex]\[ f(0) = 34.00 \][/tex]

5. Evaluate [tex]\( f(1) \)[/tex]:
[tex]\[ f(1) = 34 \cdot (0.86)^1 \][/tex]
By completing the calculations and rounding to the nearest hundredth, we find:
[tex]\[ f(1) = 29.24 \][/tex]

6. Evaluate [tex]\( f(2) \)[/tex]:
[tex]\[ f(2) = 34 \cdot (0.86)^2 \][/tex]
After calculating and rounding the result to the nearest hundredth, we get:
[tex]\[ f(2) = 25.15 \][/tex]

7. Evaluate [tex]\( f(3) \)[/tex]:
[tex]\[ f(3) = 34 \cdot (0.86)^3 \][/tex]
Completing the calculations and rounding the result to the nearest hundredth, we obtain:
[tex]\[ f(3) = 21.63 \][/tex]

Thus, the evaluated values of the function [tex]\( f(x) = 34 \cdot (0.86)^x \)[/tex] are:
[tex]\[ \begin{aligned} f(-3) & = 53.45 \\ f(-2) & = 45.97 \\ f(-1) & = 39.53 \\ f(0) & = 34.00 \\ f(1) & = 29.24 \\ f(2) & = 25.15 \\ f(3) & = 21.63 \end{aligned} \][/tex]