book Maths Puzzle Numerical Ability

What is the quadratic equation for:
The sum of the squares of two consecutive positive integers is 85.

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book Other Question

What is the turning point, and focus of y= 1/4x2? Also what is its directrix? find the probabilty that at random a brunete that wants afternoon classes from the chart below.

Morning- Blonde(5) Brunette(25) Red(30)
Afternoon Blonde(35)Brunette(15) Re