exam Maths Puzzle Numerical Ability

) Describe the three possible relationships for two straight lines in the same plane.

2) What is the solution to a system of two equations represented by two parallel lines in

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exam Other Question
Can someone tell me how to input a factorial (!) equation to find the first 5 terms into a TI-83?
For example: b{n}=((n+2)!)/n!
Thank you. 5x/7-2x/5=6/35 These are fractions 5x, 2x, 6 are all the numerator...