exam Maths Puzzle Numerical Ability

I need help with this problem: What is the equation of the line that is to y=3x+1 and passes through (2,6)?

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exam Other Question

If you were to solve x^2 - 5x = 6 by factoring, which step would result?

I got:
(x+6)(x-1)=0

Thanks~
Find the determinate of the matrix
(8 + 4a 4)
(5 + 3a 3)

Possible answers are:
a.) 4
b.) 44
c.) 4 + 24a
d.) 44 + 24a