Question

let f(x)=1/x the reciprocal function .the average rate of change from x=-1 to x=-0.1 equals
A.-100
B.-10
C.0
D.-1

Answer 1

@hartnn

Answer 2

can u help me

Answer 3

Average rate of change from a to b
\(\Large \dfrac{f(b)-f(a)}{b-a}\)

Answer 4

ok

Answer 5

so, you need to calculate
\(\large \dfrac{f(-1)-f(-0.1)}{-1-(-0.1)}\)

Answer 6

can you find f(-1) and f(-0.1)
?

Answer 7

my calculator said error idn why

Answer 8

to get f(-1)
just plug in x =-1 in f(x)

Answer 9

ok