Given that −1 ≤ v ≤ 1, −2 ≤ u ≤ −0.5 and −2 ≤ z ≤ −0.5 and w = vz/u, then which of the following is necessarily true?
Explanation:
w = vz/u
From the given range of values for u, v and z, we have,
Maximum possible value of w is 4 when v is 1, z is −2 and u is −0.5.
Also minimum value of w is −4 when v is −1, z is −2 and u is −0.5.
Hence, option (b).
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