A B
C
D
YA
E
YA
F
YA
u
O
Match each equation
with the letter of its graph.
y = sin x:
y= x3 - 3x
y= 2x
+
3
y = x - 3x:
+
.x
y = 2
2
+

Acentral angle measuring 160 degrees intercepts an arc in a circle whose radius is 4. what is the length of the arc the circle formed by this central angle? round the length of the arc to the nearest hundredth of a unit. a) 4.19 units b) 6.28 units c) 12.57 units d) 12.57 square units