Lloyd and Linda Pearl want to remodel the dining room in their house. The estimated cost for the job is $6,890. They pay 30 perc
ent of the cost up front and finance the rest at 15 percent interest for 48 months.
A- What is the Down Payment?
B- What is the Amount Financed?
C- What is the Monthly Payment?
D- What is the Finance Charge?
A- What is the Down Payment?
B- What is the Amount Financed?
C- What is the Monthly Payment?
D- What is the Finance Charge?
1 answer:
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Given:
The focus of the parabola is at (6,-4).
Directrix at y=-7.
To find:
The equation of the parabola.
Solution:
The general equation of a parabola is:
...(i)
Where, (h,k) is vertex, (h,k+p) is the focus and y=k-p is the directrix.
The focus of the parabola is at (6,-4).
On comparing both sides, we get
...(ii)
Directrix at y=-7. So,
...(iii)
Adding (ii) and (iii), we get
Putting in (ii), we get
Putting in (i), we get
Therefore, the equation of the parabola is .
