Circles and Tangents Lesson

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Tags

CCSS.HSG.GPE.A.1

what is the equation of the line that is perpendicular to the line y=2.5x+6 which crosses the y-axis at the point y=10

• y=2.5x+10

• y=1/2.5x+10

• y=-1/2.5x+10

• y=-2.5x+10

The diagram shows the circle x^2 + y^2 = 40 with a tangent at the point (2, 6)

what is the gradient of the line OP

• -1/3

• 1/3

• -3/1

• -3

Tags

CCSS.HSG.GPE.A.1

The diagram shows the circle x^2 + y^2 = 40 with a tangent at the point (2, 6)

what is the gradient of the tangent

• y=-3x+26

• y=1/3x

• y=-1/3x+20/3

• y=-1/3+3/20

The diagram shows the circle x^2 + y^2 = 29 with a tangent at the point (−5, 2) find the equation to the tangent

• 2.5x

• 2.5x + 14.5

• 0.4x + 4

• 0.4x