Answer:
1.2 centimeters.
Step-by-step explanation:
If the plant grows .4 centimeters per week, you can multiply that number by three. The resulting value is the plant's total growth over three weeks.
Center (0,0)
radius = √16 = 4
We can get two different equations from this:
3x = 18
and
3x = -18
So:
x = 6, x = -6
x = {6, -6}
