MAC 1114 Trigonometry
Section 8.5: Polar Coordinates
1) Graph the points on a polar coordinate system.
a)
)60,3(
b)
)225,2(
c)
2
3
,2
d)
4
5
,4
2) Give three other ordered pairs with
360360
that name the point
)135,5(
.
3) Convert to rectangular coordinates. Use exact values.
a)
)60,2(
b)
),1(
4) Convert to polar coordinates with
0r
and
3600
.
a)
)3,3(
b)
)32,2(
5) Convert to polar coordinates with
0r
and
20
.
a)
)0,2(
b)
)1,3(
6) Write each equation with rectangular coordinates.
a)
sin6r
b)
2cos4
2
r
7) Write each equation in polar coordinates.
a)
9
22
yx
b)
xy
1
