Student demos , write an equation from the table of values

Which expression is equivalent to the expression shown?

What are the solutions of the system? solve by graphing. y = -x^2 -6x - 7 y = 2

Which equation could represent the relationship shown in the scatter plot? y=−3x−2 y=−3/4x+10 y=−2/3x+1 y=9x−12 scatter plot with x axis labeled variable x and y axis labeled variable y. points go from upper left to lower right.