Range for the given Exponential function 
is f(x) > 0.
the correction option is a). f(x) > 0
The function given in, the question is exponential function is given by
Which is an exponential function. The domain of the give function is (-∞, ∞).
<h3 /><h3>what is exponential function?</h3>
The function which is in format f(x) = 
where, a is constant and x is variable, the domain of this exponential function lies (-∞, ∞).
the Question seems to be incomplete. And options could be
a) f(x) > 0 c) f(x) ≤ 0
b) f(x) < 0 d) f(x) ≥ 0
Simplification of the given equation
clearly, the range of the exponential function is f(x) > 0.
learn more about exponential function here:
brainly.com/question/15352175
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We know, speed = distance / time
Here, distance = 320 km
time = 4 hours
Just substitute their values,
v = 320/4
v = 80 Km/h
In short, Your Answer would be 80 Km/h
Hope this helps!
$1,051. You first multiply 850 by 0.06, or 6 percent, to get $51. then add to his monthly salary. Hope this helps
B. addition and subtraction
