Question

sketch graphs of the following lines all on the same coordinate plane.
y=3x+1, y=-3x -3 , y=-1/3 x + 1 , y= -1/3 x -3



2.identify the slope and y-intercept of each of the lines in problem 1.

3. identify lines in problem 1 that are parallel to each other.

4. identify lines in problem 1 that are perpendicular.

(draw a graph)

need help Q ~Q

Answer 1

for a line in the form of equation y = mx + b
where m is your slope and b is the y intercept...ie...y intercept means when x = 0...and x intercept means when y = 0..there you can try to do some of your problems.

Answer 2

And when two lines parallel they will have the same slope m1=m2
-----------------perpendicular --------the produce of their slopes is -1:
(m1)(m2)=-1