exam Maths Puzzle Numerical Ability

I need to Write an equation in the standard form for the indicated conic section of A parabola with vertex (3,1) and directrix y = -1

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exam Other Question

6. A circle of radius 5 has its center on the line 3x – 2y + 6 = 0 and the circle is tangent to the y axis. Find its equation. (There are two solutions.) How do you solve this equation??
5x-y=10
7x-2y=11