Circles (mixed set)
Interactive practice questions
Does $\left(x-7\right)^2+\left(y-5\right)^2=-4$(x−7)2+(y−5)2=−4 represent the equation of a circle?
No
A
Yes
B
Easy
< 1min
Is the following statement true or false?
The graph of $\left(x-4\right)+\left(y+3\right)=4$(x−4)+(y+3)=4 is a circle with radius $2$2 and centre at $\left(4,-3\right)$(4,−3).
Easy
< 1min
Is the following statement true or false?
The graph of $\left(x-2\right)^2+\left(y-4\right)^2=-36$(x−2)2+(y−4)2=−36 is a circle with radius $6$6 and centre at $\left(2,4\right)$(2,4).
Easy
< 1min
State the equation of the circle.
Easy
1min
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