Unit 9 (trig/circles) Exam Review

Write the equation of a circle with center (7, 0) with radius 3.

• (x - 7)² + y² = 9
• x² + (y -7)² = 9
• (x - 7)² + y² = 3
• x² + (y -7)² = 3

Tags

CCSS.HSG.GPE.A.1

What are the coordinates of the center and the radius of the circle with equation:
(x - 4)² + (y - 3)² = 25 ?

• Center (4,3)
  Radius = 5 units
• Center (4,3)
  Radius = 25 units
• Center (-4,-3)
  Radius = 25 units
• Center (-4,-3)
  Radius = 5 units

Tags

CCSS.HSG.GPE.A.1

Write the standard equation of the circle with the given center and radius; center at the origin and radius:  $\sqrt{3}$  

•  $x^2+y^2=9$  

•  $x^2+y^2=6$  

•  $x^2+y^2=3$ 

Which equation of a circle has a radius of 2 and is translated 3 units up and 4 units to the right from the origin?

• $\left(x-3\right)^2+\left(y-4\right)^2=4$

• $\left(x-4\right)^2+\left(y-3\right)^2=4$

• $\left(x-3\right)^2+\left(y-4\right)^2=2$

• $\left(x-4\right)^2+\left(y-3\right)^2=2$

In the equation (x+2)²+(y-3)²=4, the radius of the circle is...

• 4
• 2
• 3
• 16

Tags

CCSS.HSG.GPE.A.1

In the equation (x-3)²+(y-2)²=16, the center of the circle is...

• (3,2)
• (-3, -2)
• (-2, -3)
• (2, 3)

Tags

CCSS.HSG.GPE.A.1

What is the radius of the circle

(x+7)²+(y-2)²=144?

• 7

• 12

• 24

• 144

Tags

CCSS.HSG.GPE.A.1

The diameter of a circle has length 12. The center is at (-5, 2). Give the equation of the circle.

• (x - 2)² + (y + 5)² = 36

• (x - 5)² + (y + 2)² = 6

• (x + 5)² + (y - 2)² = 36

• (x + 2)² + (y - 5)² = 6

Tags

CCSS.HSG.GPE.A.1

What trigonometric ratio would be used to find the distance from the ship to the plane?

• sine
• cosine
• tangent
• inverse sine

Tags

CCSS.HSG.SRT.C.8

The angle of 12^o is a(n)

• angle of elevation
• angle of depression
• neither
• both

Tags

CCSS.7.G.B.5