Answer:
Y=4x-2
Step-by-step explanation:
You have to try it (x,y) (2,6)
y=4x-2
6=4(2)-2
6=8-2
Answer:
a_n = 2^n + 3
Step-by-step explanation:
The first differences have a geometric progression, so the explicit definition will be an exponential function. (It cannot be modeled by a linear or quadratic function.) The above answer is the only choice that is an exponential function.
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First differences are ...
(7-5=)2, 4, 8, 16
5(9 + 7) = 5 x 9 + 5 x 7 = 45 + 35
-6 + 7 = 1 and -6*7 = -42
So f(x) = (x + 7)(x - 6)
