Answer:
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Step-by-step explanation
it is a vertical line and has no defined slope

Substitute
, so that
, and

which is separable as

Integrate both sides with respect to
. For the integral on the left, first split into partial fractions:



Solve for
:






Replace
and solve for
:


Now use the given initial condition to solve for
:

so that the particular solution is

You use the formula given and it usually involves dividing
Answer: 28
Step-by-step explanation: 2x14=28
7x4=28
Both are factors of 28