exam Maths Puzzle Numerical Ability

how would I write an equation using: slope=1/3,passing through(-1,5)? thank you!!

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exam Other Question

Evaluate

-c2nd power - 5(c0 power + d)2nd power if c = -3 and d = 4
please help solve

1) factor by grouping 2ab^2-8b^2+a-4

2) Factor the trinomial k^2-11k+30