book Maths Puzzle Numerical Ability

What is the vertex of (y - 1)2 = 4x?

a. (0, 1)
b. (-1, 4)
c. (4, -1)
d. (-1, 0)

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book Other Question

The speed of a freight train is 14 km/hour slower than the speed of a passenger train. The freight train travels 330 km in the same time that it takes the passenger train to travel 400 km. Find the speed of the freight train. ___km/hr

Thanks x^2-x x^2+2x
_______ / ______
x^2+3x+2 x^2-1