8 The circle C has equation x' + y -18x - 6y + 45 = 0 a. Find the radius of C and the coordinates of its centre P. b. Show that the line y = 2x is a tangent to C and find the coordinates of its point of contactQ. c. Show that the tangent to C at the point R(6, 9) has equation x- 2y +12 = 0 d. Given that the tangents to C at Q and R meet at S show that QS = V5. %3D

Q: 4. x² 2x 5. (125x²y¹) 6. (16a 1/4

A: (4)  K=x22x-5ax×ay=ax+y

Q: 8 15

A:

Q: 32 26

A: Use, sin(theta) = Perpendicular/Hypotenuse

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A:

Q: 8 54 48

A:

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A: The given expression is

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A:

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A:

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A: 2×100=200

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A: Find the angle x .

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Q: 216 5 5 6

A: B) It is a long division method used to divide.

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A: A circle is given below as shown We have to find x°

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A: Given :      ∫e73k-13   dk

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A: Cycle is defined as a path that start and end at the same vertex.

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A: Given query is to solve the expression.

Q: 2. 7. 58

A:

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A: Given       5  2 3 − 4 4 8¯      1  5 7 5

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A: Given,          A triangle is shown below :

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A:

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A:

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Equations and Inequations

Equations and inequalities describe the relationship between two mathematical expressions.

Linear Functions

A linear function can just be a constant, or it can be the constant multiplied with the variable like x or y. If the variables are of the form, x2, x1/2 or y2 it is not linear. The exponent over the variables should always be 1.