Find the missing coordinate (?, - 1) for 3x - 4y = 11

They give us the coordinate (x, - 1). - 1 is the y-value, so we plug that in for the variable y in the equation. We need to find the x-value, so we want to solve for x in the equation.

3x - 4y = 11 → Then, plug in y = - 1

3x - 4 (-1) = 11 → 4 (-1) = - 4

3x - (-4) = 11 → Two negatives = a positive

3x + 4 = 11 → Subtract 4 from both sides

3x = 7 → Divide both sides by 3

x = 7/3 is the missing coordinate