Jason kept track of the number of songs he downloaded each week for 10 consecutive weeks. This function models the number of songs he downloaded, where x is the number of weeks:

N(x) = -3(x − 4)2 + 60.

Plot the axis of symmetry and the vertex for this function.

for this case we have by definition, if two lines are perpendicular, then the product of their slopes is -1.

then, given the following line:

so,

we are looking for m_ {2}:

then, the line is given by:

we find "b" replacing the given point:

finally, the equation is:

option c

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