What are the vertex and the axis of symmetry of the equation? y=-2^2+8x-18

What is the solution to the system of equations? (–2, –8) (–1, –5) (0, –2) (2, 4)

How do you determine whether a relationship represented as as graph is linear or nonlinear

Amovie streaming service charges it’s customers $15 a month. martina has $98 saved up. will she have any money left over if she pays for the maximum amount of months she can afford? explain.