exam Maths Puzzle Numerical Ability

Determine the algebraic rule for the line that:

contains (5,0) and is perpendicular to x= -1

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exam Other Question

find the domain for the following:

f(x) = sqrt (3x-4)

g(x) = (-2x+1) / (1-3x)
Solve the equation y = 3x+5/7x-4 for x. I have used the distributive property to get the equation to y*(7x-4) = 3x +5 and then y*(7x-4)-3x - 5 = 0 but from this point on I just ke