Question

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

Answer 1

y = 1/16

Explanation:

y = 4 • 2^x

Let x = -6

y = 4 • 2^(-6)

The negative exponent puts it in the denominator

y = 4 • 1/ 2^6

y = 4 * 1/64

y = 4/64

y = 1/16