Question

started.

Give the coordinates of two points on the line x = 5.
Give the coordinates of two points on the line y = -2.
Write the equation of the horizontal line passing through the point (-1, -8).
Write the equation of the vertical line passing through the point (3, 1).
Is the line with equation x = 4 horizontal or vertical? What is the slope of this line?
Is the line with equation y = -8 horizontal or vertical? What is the slope of this line?


i really need the help :'c

Answer 1

this is algebra 1

Answer 2

x=5 means all the x coordinates are 5, so its a vertical line. So you can pick any y coordinates and as long as the x coordinate is 5, itll be on the line.

Same idea with the second one y=-2 except the other way around, as long as the y coordinate is -2 itll be a point on the line

Answer 3

Give the coordinates of two points on the line x = 5.

x=5 is a line going through only 5 on hte x-axis. The x-coordinate for ANY point on this line will be five. The y-coordinate will depend on the position of the point on the line x=5.

Same goes for y=-2. It is a line going through only -2 on the y-axis. The y coordinate for ANY point on this line will be -2.


I read your third question wrong, and I spent time explaining a concept I didn't need to. I'm a little miffed with myself at this point.

The horizontal line (-1,-8)
Looking back at the first two, which line is horizontal (right to left)? What's sepcial about lines like that? What does it mean for this coordinate?
Same with vertical lines.

Apply that knowledge to these last two quesions. What does x=4 look like on a graph? How about y=-8?

The slopes are found by RISE divided by RUN. Pick two points on both lines, and find the slope between them. Vertical lines always have infinite slopes. Horizontal lines always have slopes of 0.