Question

What is the slope of the line that passes through (2, 5) and (–1, 5)?

–3

0

undefined

3

Answer 1

i got 1/-3

Answer 2

but i'm not sure what the answer would be

Answer 3

y2-y1/x2-x1

Answer 4

= m (slope)

Answer 5

i got 1/-3 as my slope

Answer 6

(5-5)/(-1-2) = 0/-3

Answer 7

y coordinates are the same, so the line is horizontal and the slope is zero

Answer 8

oh crap aahaha

Answer 9

wait i dont understand

Answer 10

the y coordinates are both 5

Answer 11

i know the slope is 0/-3 but how do i figure out if it's undefined or not

Answer 12

they cancel out
wouldnt it be undefined?

Answer 13

ah, gotcha...

Answer 14

the slope measures the steepness of the line but in this case the line is horizontal, as \(x\) increases by 1 unit, y stays the same, so the slope is zero
over one, don't go up or down at all

Answer 15

rise/run = slope

Answer 16

there is no rise, but a run

Answer 17

(2, 5) and (–1, 5)

gradient of line or slope :
(y2 - y1) / (x2 - x1)

(2, 5)
let x1 represent 2
let y1 represent 5

(-1, 5)
let x2 represent -1
let y2 represent 5

now using equation:

(5 - 5) / (-1 - 2)
= 0/-3

Answer 18

so its 0

Answer 19

@pamelasaucedo \(\frac{0}{\text{some number}}\) is \(0\)

Answer 20

so is it 0 or undefined? you guys are confusing me lol

Answer 21

0

Answer 22

gradient is 0. therefore the line is parallel to the x axis

Answer 23

a fraction with zero in the numerator (top) is zero

Answer 24

oh alright i get it now

Answer 25

a fraction with zero in the denominator is undefined