Find the equation in standard form of the parabola described.The vertex has coordinates (9, -4), and the focus has coordinates (9, -6).
A. (y - 4)2 = 12(x + 9)
B. (x - 9)2 = -8(y + 4)
C. (x - 9)2 = 8(y + 4)
D. (y - 4)2 = -12(x + 9)
Answer: B
Mathematics
You might also like to view...
Find the unknown length in the right triangle. If necessary, approximate the length to the nearest thousandth.
A. 138.5 cm B. 16.643 cm C. 277 cm D. 11.5 cm
Mathematics
Find the product.[(t2 - 1) + 6]2
A. -t4 + 10t2 - 25 B. t4 + 10t2 + 25 C. t4 + 14t2 + 25 D. t4 + 10t2 - 25
Mathematics
Evaluate the expression for the given value of x.-2x2, x = 5
A. -50 B. 20 C. 100 D. 50
Mathematics
Find the angle between the given vectors to the nearest tenth of a degree.u = i - 9j, v =
i + j
A. 65.9° B. 100.1° C. 45.2° D. 90.4°
Mathematics