Each ordered pair represents (x,y), so to find the correct answer simply plug in the values of x and y into the formula and see if the equation holds.
Try (-4, -1):
[tex]y=2x+7[/tex]
[tex]-1=2(-4) + 7[/tex]
[tex]-1 = -8+7[/tex]
[tex]-1=-1[/tex] → and that is true, so option (a) is the answer.
