Geometry circles in the coordinate plane math homework help

March 8, 2023
assignment 200
March 8, 2023

What is the center and radius of the circle with the equation (x – 2)2 + (y – 7)2 = 49

a. Center (-2, -7); r = 7

b. Center (2, 7); r = 7

c. Center (-2, -7); r = 49

d. Center (2, 7); r = 49

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Which is the standard equation of a circle with diameter with A(0, -1) and B(2, 1)?

a. x2 + (y + 1)2 = 2

b. (x – 2)2 + (y – 1)2 = 1

c. (x + 1)2 + y2 = 1

d. (x – 1)2 + y2 = 2

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Which of the following is not always true about congruent circles in the coordinate plane?

a.They intersect in at least one point.

b.Their circumferences have equal measurement.

c.Their areas are congruent.

d. Their diameters are congruent.

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What is the equation of a circle with a center (-4, -2) and a radius of r = 3?

a.

b.

c.

d.

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