exam Maths Puzzle Numerical Ability

My problem is; Find the slope and y - intercept. x = -7. Where do I even begin?
Please Help.
Thank you.

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exam Other Question

2+5/2+7/12+9/2to the power 2+12/12to the power 2+13/2 to the power 3+19/12 to the power 3+17 to the power 4






which of the following is true
10
(t+2)^3(t^2+2t+1)(t+1) over (t+1)(t^2+4t+4)(t+2)

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