New Zealand
Level 8 - NCEA Level 3

# Circles (manipulation of equation, graphing and applications)

## Interactive practice questions

Which of the following is the graph of $x^2+y^2=3$x2+y2=3?

A

B

C

D

A

B

C

D
Easy
Less than a minute

Which of the following is the graph of $x^2+y^2-6x+4y=3$x2+y26x+4y=3?

Which of the following is the graph of $x^2+y^2+5x-3y=0$x2+y2+5x3y=0?

Use a graphing utility to graph the circle whose equation is $\left(y+2\right)^2=16-\left(x-3\right)^2$(y+2)2=16(x3)2.

Which of the following graphs do you get?

### Outcomes

#### M8-1

Apply the geometry of conic sections

#### 91573

Apply the geometry of conic sections in solving problems