Need Math Help Really Important I Dont Understand This

Draw an x-axis and y-axis on the grid paper. Number each from -10 to 0 and 0 to 10.

Graph the points (6, 9) and (-2, -3) on the grid paper using one of your colored pencils and connect them.

Graph the points (1, -6) and (9, 6) using the other colored pencil, connecting as you go.

Question 1. What kind of lines are these, perpendicular or parallel?

Question 2. What is the slope of the first line you drew?

Question 3. What is the slope of the second line you drew?

Question 4. What is the relationship between the slopes of two parallel lines?

On the same graph, plot the points (-1, 5) and (5, 1) on the grid paper using one of your colored pencils and connect them.

Question 5. What is the slope of the line you just drew?

Question 6. What is its relationship to the first line you drew, perpendicular or parallel?

Question 7. What is the relationship between the slopes of two perpendicular lines?

Draw a new set of axes and draw a horizontal line at y = 2 and a vertical line at x = -4.

Question 8. What is the slope of the horizontal line?

Question 9. What is the slope of the vertical line?

Question 10. What is the relationship of these two lines?

must I spend the whole evening to do calculations ??????????????????????
and if you do not understand the exercise, can I understand ?
then, I have traced all the lines on the sheet , question 1 : the line of the points 6 9 and -2 -3 are parallel ; question 6 : parallel
How long do I have to answer the other questions?
I saved the question, maybe in a couple of days I understand something.I let you know.