book Maths Puzzle Numerical Ability

Show that the points(5,7), (3,9) and (6,8) are the vertices of a right triangle.

can use distance formula or slope.

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book Other Question

Write the equation of the line that passes through point (5,-8) with a slope of -2. Two hundred and ten people attended a school carnival. The total amount of money collected for tickets was $710. Prices were $5 for regular admission, $3 for students, and $1 for