Question

Answer this question

Answer 1

p(1/2)=8(1/8)-k

1/2=8/64-k

k=1/8 -1/2

k=1-4/8

k=3/8

k=0.375 is the answer.

Hope it helped you.

Answer 2

p(1/2) = -8*

$p(1 \div 2) = - 8 \times ( \frac{1}{2} ) {3}^{1 } - k$

$- 8 \times \frac{1}{8} - k$

$- 1 - k = 0 \\ k = 1$