9. y=1/x^5
re-write it as y = x^-5 , and it becomes straightforward
10. y = x^(1/2)
dy/dx = (1/2) x^(-1/2) = 1/(2√x)
so when x = 2, dy/dx = 1/(2√2)
Ok last 2 questions for the night lol
"For problems 8-10 find y'(2) "
9. y=1/x^5
10. y= x^1/2
2 answers
use the power rule
9. y' = -5/x^6
10. y' = 1/(2√x)
now just plug in x=2
9. y' = -5/x^6
10. y' = 1/(2√x)
now just plug in x=2