Weegy: (x) = 4^2x - 100 when x = 2 f(x) = 4^2(2) - 100 f(x) = 16(2) - 100 f(x) = 32 - 100 f(x) = -68
User: What type of conic section is the following equation?
9x2 + 4y2 - 36 = 0
parabola,
circle,
hyperbola,
ellipse
(More) 8
x^2 + 2x - 1 = 0
a = 1, b = 2, c = -1
b^2 - 4ac = 2^2 - 4(1)(-1) = 8
x = [-2 ± sqrt(8)]/2
= -1 ± sqrt(2)
The solution for the equation x^2 + 2x - 1 = 0 is x = -1 + sqrt(2) or x = -1 - sqrt(2)
Added 4/21/2014 9:19:47 PM
This answer has been confirmed as correct and helpful.
Confirmed by
jeifunk [4/21/2014 9:21:29 PM]
8
9x^2 + 4y^2 - 36 = 0
9x^2 + 4y^2 = 36
x^2/4 + y^2/9 = 1
The type of conic section for the equation 9x^2 + 4y^2 - 36 = 0 is ellipse.
Added 4/21/2014 9:22:43 PM
This answer has been confirmed as correct and helpful.
Confirmed by
jeifunk [4/21/2014 9:37:47 PM]
