What is the correct way of writing an ordered pair?

In which quadrant is the point (5,-3) located?

If you were to plot the point (-5, 3) on the cartesian plane, what will be the correct steps?

If in the equation x + 2y = 10, the value of y is 6, then what will be the value of x?

If (2 ,0) is a solution of the linear equation 2x + 3y = k, then is the value of k?

Find the slope of the line.

In the equation $$y=-5x+7$$  , which value represents the slope of the equation?

Which equation shows a slope of -2 and the y-intercept of 3?

What is the slope-intercept form of $$5x-3y=-9$$ ?