exam Maths Puzzle Numerical Ability

2x3+2x2-4x
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x3+2x2-3x

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exam Other Question

I am going to take a final exam and i need help to making a study guide that i can understand how to do the following so i won't forget. I need someone who has a couple of minutes Given the points A(2,5) and B(0,-3) find:

the distance between A and B
the slope of the line through A and B
The slope of a line perpendicular to the line through A and B

Please help!