What is a vertical asymptote ?
A vertical asymptote is when the denominator equals zero. You can factor and solve the denominator to find the asymptote.
What is a horizontal asymptote and what are three ways using the degrees you can tell what the horizontal asymptote is?
Horizontal line that the function never touches.
Numerator exponent is bigger= then it is none Numerator exponent is smaller=then it is 0
Exponents are the same= divide coefficients
Find the VA, HA of f(x)=x^2+2x/-4x+8
x(x+2)/-4(x-2)
VA= 2 HA= None
The domain of a rational function consists of all real numbers except _________.
Discontinuities (Asymptotes, holes)
The domain for the function:
f(x)=4x^3-10x^2-8x+7
All real numbers
Find the VA, and HA. f(x)=x^3-16x/-4x^2+4x+24
VA= x=3, x=-2 HA= None
Write the domain of the function:
f(x)=(x+1)/((x+2)(x-7)
(-oo,-2)(-2,7)(7,oo)
The domain for the function:
R(x)=sqrt(x+5)
[-5,oo)
factor x2+5x+6
(x+2)(x+3)
Find the domain:
f(x)=(x+2)/(x^2+2x-15
(-oo,-5)(-5,3)(3,oo)
The domain for the function:
R(x)=(x-2)/(x^2-25)
All real numbers except 5 and -5
Vertical asymptote(s) of
(x2+3)/(x2+3x-4)
x=1 x=-4
Find the domain:
(x^2-1)/(x^2-2x-3
(-oo,3)(3,oo)
Zeros of the function (x2-2x-3)/(x+3)
x=-1,3
add/subtract the polynomials
(2x2+3x+7)-(x2+4)
x2+3x+3
Find the domain:
f(x)=√x2+5x+6
(-oo,3][-2,oo)
Zeros of the function (x2-x-20)/(x-5)
x=-4