Question

What is the slope of the line below?



A. zero
B. negative
C. undefined
D. positive

Answer 1

hold on, ill attach the graph if i can

Answer 2

whats the line ?

Answer 3

He would post it

Answer 4

can't you just type it.....we do not need the graph

Answer 5

the line is going straight up and the coordinates are (3,5), and (3,2)

Answer 6

first you find the slope by using the slope formula
slope(m) = (y2 - y1) / (x2 - x1)
(3,5) x1 = 3 and y1 = 5
(3,2) x2 = 3 and y2 = 2
now we sub
slope(m) = (2 - 5) / (3 - 3)
slope(m) = -3/0

when there is a zero in the denominator, it is a vertical line with an undefined slope.

Answer 7

when the x values are the same...in this case, they are both 3, then the line is vertical and has an undefined slope.
Now, if the y values would have been the same, it would have been a horizontal line with a 0 slope

Answer 8

thats what i just got when i done the coordinates, i got -3, and 0

Answer 9

the slope is undefined if it is a vertical line, which it is

Answer 10

Here are some acronyms that might help you...

VUX -- vertical line, undefined slope, represented as x = a constant.
HOY -- horizontal line, 0 slope, represented as y = a constant

Answer 11

thanks for your help, i dont understand some of this stuff

Answer 12

you see, with the two sets of points you were given...(3,5) and (3,2)...if you had to figure the line, it would be x = 3

Answer 13

what if the numbers were all negative, it would be -3 right?

Answer 14

if both x values were -3, then yes, the line would be x = -3 but the slope would still be undefined if there is a zero in the denominator.

Answer 15

oh, ok

Answer 16

just remember, vertical lines have a zero in the denominator and their slope is undefined.
Horizontal lines have a zero in the numerator and their slope is 0

Answer 17

if its 7,0, then its undefined?

Answer 18

yep...because you got a zero in the denominator

Answer 19

ok, i get some of it now

Answer 20

wait...did you mean slope 7/0....if so, it is undefined.

Answer 21

yea, thats what i meant, sorry

Answer 22

no problem...do you have any questions

Answer 23

if i have the coordinates (-4,-6) and (2,-8) would it be horizontal,vertical,up and to the right, or down and to the right?

Answer 24

you are really good at math

Answer 25

slope(m) = (-8 - (-6) / (2 - (-4)
slope(m) = (-8 + 6) / (2 + 4)
slope(m) = -2/6
slope(m) = -1/3
DOWN AND TO THE RIGHT because the -1 is negative, it goes down, and 3 is positive, it goes to the right

Answer 26

youre cool, i can correst it later

Answer 27

if I had $1 for every mistake I made, I would be rich....thats so sad

Answer 28

its OK, i don't hold it against you

Answer 29

lol...good to know

Answer 30

do you have any more questions while I am still here ?

Answer 31

i dont hold a grudge or anything just cause you got the wrong answer, everybody makes mistakes

Answer 32

I am just glad I caught it

Answer 33

i medaled you anyway, so ur cool

Answer 34

thank you....if you have more problems, just tag me and I will see what I can do :)

Answer 35

thans

Answer 36

thanks

Answer 37

:) anytime

Answer 38

(5,0), (5,-9) up ant to the right or up and to the left?

Answer 39

look at your x values...they are both 5
when the x values are the same, the line is vertical with an undefined slope

Answer 40

if the y values were the same, the line would be horizontal with a 0 slope

Answer 41

i got another ? i dont mean to bother you though

Answer 42

what ya got ?

Answer 43

hold on a sec

Answer 44

no hurry..I am just sitting here with my bowl of cereal ....its really good too

Answer 45

just tag me

Answer 46

i have (-4,-6) and (2,-8)

Answer 47

what are you looking for ? The slope or the line ?

Answer 48

what direction is the line going?

Answer 49

slope = (y2 - y1) / (x2 - x1)
(-4,-6) x1 = -4 and y1 = -6
(2,-8) x2 = 2 and y2 = -8
now we sub
slope = (-8 - (-6) / (2 - (-4)
slope = (-8 + 6) / (2 + 4)
slope = -2/6
slope = -1/3
DOWN AND TO THE RIGHT

Answer 50

i thought so since most of the number were negative

Answer 51

In the slope, if the numerator is negative, the line goes down, if it is positive, the line goes up.
In the denominator, if it is positive, it goes right, if it is negative, it goes left

Answer 52

you are really freaking smart

Answer 53

lol....not on some things.....not real good with geometry

Answer 54

thats what ive been asking you is geometry

Answer 55

solve 2|3(x-5)|+3=9

Answer 56

I just did that and sent it to her

Answer 57

ok, thanks

Answer 58

I just hope I did it right.....absolute values can be a pain in the butt

Answer 59

im not really smart in math, i owe you one.

Answer 60

In what direction is the line containing the points (-4, -6) and (2, -8) going?

A. down and to the right
B. vertical
C. up and to the right
D. horizontal