Evaluate the function rule for the given value. y=4•2^x for x=-6

Y=4•2^x

y = 4 * 2^ -6

y = 2^2 * 2^-6

when the bases are the same add the exponents

y = 2^ (2-6)

y = 2^ -4

negative exponents take it to the denominator if in the numerator

y = 1/ 2^4

y = 1/16

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