With 9 being the GCF this is what i got <span>9*(6+3)</span>
Selection A is appropriate.
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The black dot on the graph means that one of the regions of interest will be
x ≤ 1
The y-intercept for the left branch of the graph is -4, so we khow that
y = x³ -4, x ≤ 1
will be part of the function definition.
Derivating the equation:

So the slope of the tangent in the point (0,1) is:

Then, the slope of the normal (n) line in the point (0,1) is: