To find the paired point for the equation 5x + 2y = -10, you need to get the gradient. Rearrange the equation to be in the form y = mx +c. Therefore, 2y = -5x ? 10. y = -5/2 x -10/2= -5/2 x ? 5. The gradient is -5/2. You need to have one known value and substitute it in the equation to get the other unknown value.