f(x)= x2+3x-1, yes or no
Yes, POISON
VA of:
F(x)= 1/(x-3)
x=3
What type of discontinuity occurs at a VA?
Infinite
y-intercept of:
f(x)= (x+2)/(x-1)
(0,-2)
lim 5/x
x→∞
f(x)= 1/(x-2) @ x=2
HA of:
f(x)= (2x+1)/(x-4)
y=2
Removable Discontinuity
x-intercept of:
f(x)= (x-5)/(x+2)
(5,0), POISON
lim (3x+2)/x
x->∞
3
f(x)=√(x-4) @ x=4
yes
VA of:
f(x)= (x+2)/(x2-9)
x=3, -3
What type of discontinuity occurs when left and right limits are different?
Jump Discontinuity, DOUBLE POINT BOOST
Evaluate:
lim= (2x+1)/(x-3)
x->∞
2
lim (2x2-5x+1)/(x2+4)
x->∞
f(x)= (x+1)/(x2-4) @x=2
HA of:
f(x)= (3x2+1)/(x2-4)
y=3
What type of Discontinuity:
f(x)= (x2-1)/(x-1)
Removable (hole)
x-intercepts of:
f(x)= (x2-4)/(x+1)
(2,0) and (-2,0)
lim ((√x2+9))/x
x->∞
1, POINT STEAL
f(x)= (x2-9)/(x-3) @x=3
No, SCORE SWAP
Does the function have a HA?
f(x)= (x2+1)/x
No, SCORE SWAP
What type of discontinuity @ x=2:
f(x)= 1/(x-2)2
Evaluate:
f(x)= (3x2+5)/(x3-1)
x->∞
0
lime (3x2+1)/(2x2-5)
x->∞
3/2