Question

Which is the equation of the given line in slope-intercept form?

A. y = -3x - 1


B. y = -1/3x - 1


C. y = 3x + 1


D. y = 3x - 1

https://static.k12.com/calms_media/media/308500_309000/308808/1/c9ddd235e76faa5f12cc74a55ca077ec292fb734/MS_ALG_S1_07_10_quiz_Q4_question.gif

Answer 1

@rebeccaxhawaii @isaidavila

Answer 2

my guess is B

Answer 3

is anyone ever gonna help me with this? @AloneS @matlee @MeganXOXO @Flower-girl @farmgirl11 @Death47 @demonqueen11 @deadpoolroxz @Dani_Rose @Daniee_Bruhh @ErikLuck @Twistrose @HaileyD @NatsuOniKaze @ANIMALOVER02 @NatsuOniKaze ... tagging random people cause i need help!

Answer 4

Did you tag Qwertty? o.O Better not have..

Answer 5

no i didnt

Answer 6

Hi!!!

Answer 7

So they gave you a graph!

Answer 8

Can you tell me where the y-intercept is?

The y-intercept is where the line crosses the x-axis!

Answer 9

^ ^

Answer 10

it crosses kinda at half of one not at an actual point

Answer 11

unless you mean on the y axis then its at -1

Answer 12

That's what I meant, my bad!

Yes, the y-intercept is -1

Answer 13

So, slope intercept form is:

y = mx + b

where m is the slope
and b is the y-intercept

you said that the y-intercept is -1, so plug that in

we get:

y = mx - 1

now we need to find the slope

Answer 14

isnt the slope 6/2?

Answer 15

Do you know the slope formula?

Answer 16

or 2/6?

Answer 17

not right of hand no

Answer 18

you got it flipped

it's rise over run, or \(\bf\Large \frac{y_2-y_1}{x_2-x_1}\)

Answer 19

i know its rise over run

Answer 20

and hint: the slope is negative since it's going from left to right

Answer 21

so -6/2 then

Answer 22

wait no -2/6 ?

Answer 23

and if you simplify -6/2, you get -3

so your slope is -3

Answer 24

So we have:

m = slope = -3
y-intercept = b = -1

y = mx + b

plug in what we got so far:

we get:

y = -3x - 1

Answer 25

so the answer is c or d

Answer 26

and that's your answer :)

Answer 27

oh so the answer is A then?

Answer 28

i forgot about that sneaky little A, i didnt scroll up far enough

Answer 29

Thanks So Much @MeganXOXO !

Answer 30

It was my pleasure! <3