Question

Can some one help me answering these four questions?? I think I have the correct answer for the last two but im not really sure

1. how do you find the distance between two points on the coordinate plane?
2. how do you find the slope between 2 points on the coordinate plane?
3. what do you have to see as evidence to be convinced that the 2 lines are parallel?
4. what do you have to see as evidence to be convinced that 2 lines are perpendicular?

Answer 1

what are your answers?

Answer 2

Never mind I dont have the last two...I ended up loosing my answers..

Answer 3

Parallel lines
You know they're parallel when they never intersect

Answer 4

Perpendicular
the lines intersect at a 90 degree angle

Answer 5

does that help for the last 2?

Answer 6

Yeah but the first two im really struggling on

Answer 7

finding the distance on a coordinate plane: distance formula

Answer 8

or you could say the slope for parallel lines are exactly the same and for perpendicular the slopes are exact opposites

Answer 9

@Chumpian perpendicular lines have to intersect at 90 degrees

Answer 10

yes i know that lol

Answer 11

2) \(\dfrac{rise}{run}\)

Answer 12

Ok thank you that helps me alot

Answer 13

Could you explain the distance formula really quick to me though?

Answer 14

sure
\(\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}\)

Answer 15

if you have these ordered pairs
(10,0) and (5,4)
\(y_2=4\\y_1=0\\x_2=5\\x_1=10\)

Answer 16

\(\sqrt{(4-0)^2+(5-10)^2}\\ \sqrt{4^2+(-5)^2}\\ \sqrt{16 + 25} \\ \sqrt{ 41} = 6.4\)

Answer 17

^ that's how you do it

Answer 18

Thank you again

Answer 19

yw