exam Maths Puzzle Numerical Ability

Write equations for the vertical and the horizontal lines passing through the point (2,7) in (x,y) -coordinates.

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exam Other Question

Thank you in advance for helping me with this equation. sqrt(-2x-7) + sqrt(x+9)= sqrt(8-x) Can you identiy the intercerts and asymtoms of this equation?

f(x) = (2x) / (x + 4)