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Mathematics
Corey
25 August, 11:05
Find g (x) if it is known that g (2t) = 8t-1.
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Frankie Young
25 August, 11:28
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g (x) = 4x - 1
Step-by-step explanation:
Linear function in the format: g (x) = ax + b
g (2t) is a * (2t) + b
g (2t) = 8t - 1 means that:
when x = 2t, g = 8t - 1.
So
Equaling both sides
8t - 1 = a*2t + b
So
b = - 1,
and
2a = 8, a = 8/2, a = 4
So
g (x) = 4x - 1
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