Asked by Alex
What are the x-intercepts of the circle with center (0, −2) and radius 3?
Answers
Answered by
Reiny
equation would be
x^2 + (y+2)^2 = 9
for x-intercept, let y = 0
x^2 + 4 = 9
x^2 = 5
x = ± √5
x^2 + (y+2)^2 = 9
for x-intercept, let y = 0
x^2 + 4 = 9
x^2 = 5
x = ± √5
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