Consider the equation y = (x + 2)^2 – 3. What is the length of the focal width of the parabola?
2 answers:
Answer:
The length of the focal width of the parabola is 1.
Step-by-step explanation:
Suppose we have a parabola with the following equation:
The centre is at point .
The length of the focal width is of |4p|.
In this question:
We want to place in the general format. So
Comparing, we have that 4p = 1. So the length of the focal width of the parabola is 1.
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Answer:
The equation above represents the total time the play director spent preparing for a play.
Step-by-step explanation:
The time spent by the play director for preparing for a play is, 190 hours.
Of these 190 hours, the director spent varying amounts of time attending 35 rehearsals for the play.
Let the varying amounts of time be denoted by, <em>x</em>.
The director also spent 3/4th of an hour, i.e. 45 minutes, on other responsibilities related to the play.
The equation provided is:
The equation above represents the total time the play director spent preparing for a play.