One cost for the first price is $0.16and the second on is 0.14 so the second one is the better deal
I think it’s the first one. 30:54 because 5 times 6 is 30 and 9 times 6 is 54.
x² + y² = 9 is the equation of a circle with center (0, 0) and radius 3.
This puts the vertices at (-3, 0), (3, 0), (0, -3), and (0, 3).
When is the tangent line vertical? <em>when it passes through the x-axis.</em>
Answer: (-3, 0), (3, 0)
