The derivative of $f ( x ) = - 8 x + 7$ at x = 0 is

A)-8
B)7
C)0
D)8
E)-7

Name: The derivative of $f ( x ) = - 8 x + 7$ at x = 0 is A)-8 B)7 C)0 D)8 E)-7
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Question

The derivative of $f ( x ) = - 8 x + 7$ at x = 0 is

A)-8
B)7
C)0
D)8
E)-7

Quizplus · Accepted Answer

The derivative of a linear function $f(x) = mx + b$ is the coefficient of $x$, which is $m$. For $f(x) = -8x + 7$, the derivative is $-8$, regardless of the value of $x$.

The Derivative Of f(x)=−8x+7f ( x ) = - 8 x + 7f(x)=−8x+7

The Derivative Of $f ( x ) = - 8 x + 7$