if a staircase has 8 inches of rise for every 12 inches of thread, what is the slope of the staircase?
2 answers:
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Answer:
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Work Shown:
The trick here is to first simplify the expression so that the term in the very lower denominator cancels out. This is to avoid dividing by zero. Once this division by zero error is avoided, we can replace the delta x term with 0 and evaluate the limit as
approaches 0 from the right or positive direction.
ANSWER
EXPLANATION
Since the parabola has the (0, 0) and the directrix at y=2.
The equation is of the form
where (h,k) is the vertex.
The vertex is half way between the directrix and the focus.
The vertex will be at (0,1)
and is the distance from the vertex to the focus which is 1.