Question

Evaluate {1/4}^x for (a) x = -2 and (b) x = 3. Write your answers in simplest form.

Answer 1

a) 16; b) 1/64

Explanation:

(1/4)^x

(1^x)/(4^x)

Since 1 to any power 1

Our equation is 1/(4^x)

Answer 2

• 16; 1/64

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Given expression (1/4)ˣ.

Evaluate this for each value of x.

For x = - 2:

• (1/4)ˣ =(1/4)⁻² = 4² = 16

For x = 3:

• (1/4)x = (1/4)³ = 1/4³ = 1/64