Question 1
Find a linear approximation suitable for estimating the number 244
2/5.
◦ L(x) =
-
◦ L(x) =
+
◦ L(x) =
+
◦ L(x) =
-
◦ L(x) =
-
Question 2
Use linear approximation to estimate the change of the surface area S = 4π r
2 of a sphere if its
radius r is increased from 9 cm to 9.1 cm.
◦ 1041.61 cm
2◦ 1017.26 cm
2◦ 1024.52 cm
2◦ 1026.36 cm
2◦ 1040.62 cm
2