Find the vertex, focus, and directrix of the parabola. Graph the equation.x2 - 8x = 12y - 64

A. vertex: (4, 4)
focus: (7, 4)
directrix: x = 1

B. vertex: (4, 4)
focus: (1, 4)
directrix: x = 7

C. vertex: (4, 4)
focus: (4, 1)
directrix: y = 7

D. vertex: (4, 4)
focus: (4, 7)
directrix: y = 1


Answer: D

Mathematics

You might also like to view...

Solve the problem.To solve the rational inequality  ? 2, you can first write the inequality with 0 on one side and the other side expressed as a single fraction. Give the solution.

A. {2} B. (1, 2] C. [-4, 2) D. [1, 2)

Mathematics

Solve the problem.Suppose you deposited $5000 on January 1, 2014, in a savings account paying 5% annual interest, with interest credited to the account on December 31 of each year. On January 1, 2016, the annual interest rate changes to 4.25%. What will be the balance in your account on January 1, 2030?

A. $9469.73 B. $9872.19 C. $9903.42 D. $8713.35 E. none of these

Mathematics

Solve the equation.-4a + 2 + 5a = 14 - 26

A. {-42} B. {14} C. {-14} D. {42}

Mathematics

Use the Urban Prices Index Table to answer the question. The table shows what $100 worth of an item costs today.  *All figures are expressed as a percent of the base of 100 from two decades ago.Urban area: ChicagoWhat does $100 of Medical cost today?

A. $371.90 B. $112.40 C. $367.60 D. $354.30

Mathematics