Home › CBSE Class 12 (Commerce) › Mathematics › Application of Derivatives › Describe y = −2x + 7 as x moves along R.
Describe y = −2x + 7 as x moves along R.
AStrictly increasing on R
BStrictly decreasing on R
CConstant on all of R
DIncreasing for x > 0
Answer & Solution
Correct answer: B. Strictly decreasing on R
Its derivative is the constant −2, which is negative everywhere.
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