MTH 120 Quiz #3
Sections 2.3 and 3.1
NAME___________________________________________
Solve the problem. (2pts )
Find the limit or write DNE, if it doesn't exist. (1pt)
3) Find lim x4 - 2x - 7.
x → -2
1) If the average cost per unit C(x) to produce x
1200
units of plywood is given by C(x) =
,
x + 40
A)What is the averagecost per unit for 700 units?
4) lim
x→8
B)Approximately how much do 700 units cost?
x2 - 5x -24
x-8
Find the limit or write DNE, if it doesn't exist. (3pts)
y
Circle the correct end behavior diagram for the given
polynomial function. (1 pt)
5) f(x) = -8x6 + 3x3 - 4x - 2
4
2
-4
-2
2
4
x
A)
-2
B)
C)
D)
-4
Find the asymptotes of the function.
x-9
6) y =
2pts
x2 - 81
-6
-8
2)
a)
b)
lim f(x) =____________
x→ -1 -
V.A.__________________________________
lim
f(x) =_____________
x → -1 +
H.A.__________________________________
b) lim f(x) = _______________
x→ -1
1