Q1:
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Find dy⁄dx for the circle x2 + y2 = 36
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A. 2x + 2y
B. 36y
C. -x / y
D. -y / x
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Answer 1:
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Q2:
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The gradient of a tangent to a curve at a point is 0.2
What is the gradient of the normal to the tangent at the same point?
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A. 0.8
B. 5
C. -5
D. 0.04
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Answer 2:
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Q3:
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The equation of a tangent to a curve at a point is
y = 2x + 4
What is the gradient of the normal to the curve at this point?
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A. -0.5
B. -2
C. 0.5
D. 2
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Answer 3:
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Q4:
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Give the parametric equations of the ellipse |
A. x = 36cos t y = 25sin t
B. x = 6cos t y = 25sin t
C. x = 36cos t y = 5sin t
D.x = 6cos t y = 5sin t
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Answer 4:
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Q5:
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What is the gradient function of the ellipse ?
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A.
B.
C.
D.
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Answer 5:
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