Which of the diagrams correctly displays a→+b→=c→, using the parallelogram method?

Which order pair could be removed so that the set of order pairs is a function

Express in the simplest form: (x^2+9x+14/x^2-49) / (3x+6/x^2+x-56)

What is the equation in slope-intercept form of the linear function represented by the table? y -18 -1 -8 4 2 912 o y=-2x-6 o y=-2x+6 o y=2x-6 o y = 2x+6