Question

Let f(x)=81+3e−0.7x .

Answer 1

9.25
this is your answer

Answer 2

Answer:

$f(-3)=91.25$

Step-by-step explanation:

Given :f(x)=81+3e−0.7x

To Find: Value of f(−3)

Solution:

$f(x)=81+3e−0.7x$

Putting x = -3

$f(-3)=81+3e−0.7*(-3)$

$f(-3)=81+3e+2.1$

$f(-3)=83.1+3e$

Since the defined value of e = 2.718

⇒$f(-3)=83.1+3*(2.718)$

⇒$f(-3)=83.1+8.154$

⇒$f(-3)=91.25$

Thus the value of $f(-3)=91.25$