Given the table below, determine if the data represents a linear or an exponential function and find a possible formula for the
function.
(x): 0, 1, 2, 3, 4
f(x): 14, 12.6, 11.34, 10.206, 9.185
A) Exponential; y=14(0.10)^x
B) Linear; y= -1.2024x + 13.871
C) Exponential; y= 14(0.90)^x
D) Linear; 18.871x - 1.2024
Please explain you answer. Please someone help me, I'm in need of some help.
1 answer:
The answer is C) y=14(0.9)ˣ and it's an exponential function
PROOF
Give to x the respective values of x & calculate y, using y = 14(0.9)ˣ
x | y
---------|---------
0 | 14(0.9)⁰ = 14
1 | 14(0.9)¹ = 12.6
2 | 14(0.9)² = 11.34
3 | 14(0.9)³ = 10.206
4 | 14(09)⁴ = 9.1845
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