Answer:
a round plane figure whose boundary (the circumference) consists of points equidistant from a fixed point (the center).
Step-by-step explana
Answer:
literally google graphing calculator and type 3x
Given:

Prove:

Solution:

Putting the value of equation (ii) into the equation (i):

putting the value x into the equation (i):

Therefore, the value of x= 4
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