, find the approximate change in x which will cause y to decrease from 48 to 47.7.
(a) Find the value of
when x = 2,
(b) Express in terms of k, the approximate change in y when x changes from 2 to
2 + k, where k is a small change.
If the radius of a circle increases from 4 cm to 4.01 cm, find the approximate increase in the area.
Given that y =3t+ 5t2 and x = 5t –1.
in terms of x,
(b) If x increases from 5 to 5.01, find the small increase in t.