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Functions · SEC2_BM
Exponential functions and models
Foundation
Core
Stretch
Question 1/8
+12 XP
For
f
(
x
)
=
4
·
4
x
: calculate
f
(
3
)
.
Exponential growth
f(x) = 4·4ˣ
-1
-0.5
0
0.5
1
1.5
2
-50
50
100
150
x
y
f
(
x
)
=
4
·
4
x
×
4
×
4
(
0
,
4
)
initial value
graph of f
initial value f(0)
×4 per step
At x = 0 the function starts at 4. Every step of 1 to the right multiplies the value by 4 — it never adds a fixed amount. The x-axis is a horizontal asymptote.
Your answer
Hint 1/3
Check