Answer:
Step-by-step explanation:
average rate of change=
f(b)-f(a)/(b-a)
3(5)-3(4)/(5-4)=3
The required change in interval x = 4 and x = 5 in f(x) = 3x is 3 units.
f(x) = 3x
Change over the interval x = 4 to x = 5 to be determined.
Rate of change is defined as the change in value with rest to the time is called rate of change.
Here,
for f(4) = 3x4
f(4) = 12
for f(5) = 3 x 5
f(5) = 15
Now, change = f(5)-f(4)/5-4
= 15-12 / 1
= 3
Thus, the required change in interval x = 4 and x = 5 in f(x) = 3x is 3 units.
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