6.4b Part 1 Assignment

Describe the symmetry of the polar curve: $r=7\cos4\theta$ .
SELECT ALL THAT APPLY

• over the polar axis

• over $\theta=\frac{\pi}{2}$

• over the pole

• symmetry cannot be determined

Which equation below has 100 petals?

• $r=100\cos100\theta$

• $r=6\sin50\theta$

• $r=25\sin75\theta$

• $r=10\cos10\theta$

In the equation  $r=7\cos4\theta$  if the 4 was changed to a 5 to get  $r=7\cos5\theta$  , then what change took place in the graph?

• the amount of petals would decrease

• the amount of petals would increase

• the length of each petal would increase

• the length of each petal would decrease

Which is NOT true about the rose function
 $r=7\sin6\theta$  ?

• Each petals is less than 10 units long

• There are more than 7 petals

• There are fewer than 11 petals

• It is symmetrical about the y-axis

Which of the following could be the equation for...

• $r=2\cos7\theta$

• $r=2\cos3.5\theta$

• $r=2\sin7\theta$

• $r=2\sin3.5\theta$

Which of the following could be the equation for...

• $r=4\cos5\theta$

• $r=5\sin4\theta$

• $r=5\cos8\theta$

• $r=5\cos4\theta$

Which equation represents the graph shown?

• $r=7\cos8\theta$

• $r=8\cos7\theta$

• $r=7\sin16\theta$

• none of these

Which equation is represented by the graph?

• $r=4\sin5\theta$

• $r=2.5\sin5\theta$

• $r=5\cos4\theta$

• $r=4\cos5\theta$

Tags

CCSS.HSF-IF.C.7D

 $r=A\cos n\theta$  Based on the graph shown, find the value of A + n.  (Both A and n are integers)