Question

For which value(s) of x does f(x)=−9x+5 have a tangent line of slope 5?

Select the correct answer below:

−9

−5

59

Every value of x

No value of x

Step 1

f(x)=−9x+5 have a tangent line of slope 5

This implies, f'(x) should be 5.

f'(x) = -9 for all values of x.

Step 2

Hence, there is no value of x fo...

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