Given that (y = 4 – 9x) and (Delta x = 0.1), calculate (Delta y).
-
A.
9.0 -
B.
0.9 -
C.
-0.3 -
D.
-0.9
Correct Answer: Option D
Explanation
(y = 4 – 9x)
(frac{mathrm d y}{mathrm d x} = frac{Delta y}{Delta x} = -9)
(frac{Delta y}{0.1} = -9 implies Delta y = -9 times 0.1 = -0.9)