Answer:
B
Step-by-step explanation:
From any point (x, y) on the parabola the focus and directrix are equidistant.
Using the distance formula
= | y - 6 |
Squaring both sides
(x + 2)² + (y - 4)² = (y - 6)² ← distributing
x² + 4x + 4 + y² - 8y + 16 = y² - 12y + 36 ( subtract y² - 12y + 36 from both sides )
x² + 4x + 4 + 4y - 20 = 0 ( subtract x² + 4x + 4 from both sides )
4y - 20 = - x² - 4x - 4 ( add 20 to both sides )
4y = - x² - 4x + 16 ( divide through by 4 )
y = - 
x² - x + 4, that is
f(x) = - x² - x + 4 → B
Hello there.
<span>(a) A color printer prints 11 pages in 7 minutes. How many pages does it print per minute?
(b) It takes 63 pounds of seed to completely plant an 8 -acre field. How many acres can be planted per pound of seed?
Answer:
A) 11/7 = 1.6
B) 8/63 = 0.13.
Hope This Helps You!
Good Luck Studying ^-^</span>
Answer:
2π*2*3= 12π = 37.699
Step-by-step explanation:
surface area of a cylinder = 2 * π * radius * height
I think that i know the answer it will just be a second
Answer:
Answer: There are 5 (five terms) in the expression shown.
Step-by-step explanation:
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In the expression shown:
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" x² − 10xy + 3y + y² − 1 " ;
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→ These 5 (five terms) are:
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x² , -10xy, 3y, y², and -1 .
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