Geometry EOC Review Day 8

Geometry EOC Review Day 8

By Sheri Bosson-Sutton

Multiple Choice

The equation $$\left(x-1\right)^2+\left(y-3\right)^2=r^2$$  represents circle A. Point B (4, 7) lies on cirlce. What is r the radius of circle A.

• $$\sqrt[]{13}$$  

• 5

• $$5\sqrt[]{5}$$  

• $$\sqrt[]{137}$$  

Multiple Choice

The equation $$\left(x-1\right)^2+\left(y-3\right)^2=r^2$$  represents circle A. The points B (4,7) lies on the circle. What is r, the radius?

• $$\sqrt[]{13}$$  

• 5

• $$5\sqrt[]{5}$$  

• $$\sqrt[]{137}$$  

Multiple Choice

Which is the equation of circle B?

• $$\left(x-2\right)^2+y^2=16$$  

• $$\left(x+2\right)^2+y^2=16$$  

• $$\left(x-2\right)^2-y^2=16$$  

• $$\left(x+2\right)^2-y^2=16$$  

Multiple Choice

The equation of a circle is at (-5, 7) and its radius is 6 units. What is the equation of the circle?

• $$\left(x+5\right)^2+\left(y-7\right)^2=36$$  

• $$\left(x-5\right)^2+\left(y+7\right)^2=6$$  

Multiple Choice

Determine whether (6,8) lies on circle A with a radius 4 and the center (3, 5)

• Inside

• outside

• on

• Don't know

Multiple Choice

Which section can have the same cross section as a sphere?

• A

• B

• C

• D

Multiple Choice

The equation of a circle in general form is:

$$\left(x-3\right)^2+\left(y+5\right)^2=9$$  

Find the center and the radius of the circle.

• (-3,5) r = 9

• (-3, 5) r = 3

• (3,-5) r = 3

• (3, -5) r = 9

Multiple Choice

What shape is a cross section formed by the intersection of a cone and a plane parallel to the base of the cone?

• Circle

• Trapezoid

• Oval

• Triangle

Multiple Choice

The vertices of $$\Delta\ DEF$$  D (1, 19), E (16, -1), F (-8, -8). What type of $$\Delta DEF$$  ?

• Right

• Equailateral

• Isosceles

• Scalene

Multiple Choice

What is the equation of a line that is perpendicular to the line $$3x+y=2$$  and passes through point (6, 8)?

• $$y=3x+2$$  

• $$y=3x-10$$  

• $$y=\frac{1}{3}x+2$$  

• $$y\equiv\frac{1}{3}x+6$$  

Multiple Choice

What equation represents a line that is parallel to the line $$y=2x+1$$  ?

• $$y=-2x+1$$  

• $$2x+y=7$$  

• $$-2x+y=2$$  

• $$-2x-y=9$$  

Multiple Choice

Which is the equation of a circle that has a diameter with endpoints (1, 3) & (-3, 1)?

• $$\left(x+1\right)^2+\left(y-1\right)^2=10$$  

• $$\left(x+1\right)^2+\left(y-2\right)^2=20$$  

• $$\left(x+1\right)^2+\left(y-2\right)^2=5$$  

• $$\left(x-1\right)^2+\left(y-2\right)^2=5$$