Question

What is the slope of the line that passes through the points (16, –1) and (–4, 10)?



A.-20/11




B.-11/20




C.11/20




D.20/11

Answer 1

Use the slope formula.


\(\Large\color{blue}{ \bf \frac{y_1-y_2}{x_1-x_2} }\)

Answer 2

I tried putting it in a calculator but it doesn't work :/

Answer 3

do it with pencil and paper, it is much easier

Answer 4

especially since all your answers are given in terms of fractions, not decimals

Answer 5

I'll try..

Answer 6

let me know what you get

Answer 7

ok what do i do with the 1 and 2?

Answer 8

ok lets go slow
the one and two are subscripts, meaning "first" and "second"
you do not compute with them

Answer 9

ok

Answer 10

\[(\color{red}{16},\color{blue}{ –1}),(\color{red}{x_1},\color{blue}{y_1})\]

Answer 11

\[(\color{red}{-4},\color{blue}{ 10}),(\color{red}{x_2},\color{blue}{y_2})\]

Answer 12

What do i do with the y and x sorry I'm stupid lol

Answer 13

lets go real slow
no, not stupid, it is not like you are born knowing this
in this case you can say \(y_2=10,y_1=-1\)

Answer 14

and that makes
\[y_2-y_1=10-(-1)=11\] that is the numerator of your fraction

Answer 15

then
\[x_2=-4,x_1=16\] and so
\[x_2-x_1=-4-16=-20\] that is the denominator of your fraction

Answer 16

so it's B?

Answer 17

therefore the slope is
\[\frac{y_2-y_1}{x_2-x_1}=\frac{10-(-1)}{-4-16}=\frac{11}{-20}\]

Answer 18

B is a letter, the answer is
\[-\frac{11}{20}\]
want to try another one?

Answer 19

No i meant i have B is -11/20 look at my question

Answer 20

yes, that is right

Answer 21

Ok thank you

Answer 22

yw

Answer 23

i have one more

Answer 24

k lets try it

Answer 25

What is the slope of the line that passes through the points (3, 8) and (12, 1)?


A.-9/7




B.-7/9




C.7/9




D.9/7

Answer 26

you got an idea this time? it is identical to the last one
i mean the procedure is identical
\[\frac{1-8}{12-3}\]

Answer 27

-7/9

Answer 28

yes
hope it is clear how to do them now
more clear anyways

Answer 29

Yes they are thank you

Answer 30

yw