3 objects that could represent a point 3 objects that could represent a line 3 objects that could represent a plane

Me because some of question i don’t understand

The sum of the first eight terms of an arithmetic progression is 9m + 14. the fifth term of the06 progression is 2m - 6, where m is a constant. given that the first term of the progression is 26,find the value of the common difference, d and thevalue of m.

Which graph of a hyperbola represents the equation 16x^2-y^2=16