Question

What is the equation of the line?
A. y= -3/2x
B. y= -2/3x
C. y= 2/3x
D. y= 3/2x

Answer 1

@sumanta

Answer 2

what do you think

Answer 3

2. Points A and B lie on the graph of the equation y = −4.3x.

What are the y-coordinates for each point?
Point A: (−3,___ ) Point B: (5,___ )

Answer 4

i think its b for the first one

Answer 5

-4.3 -3

Answer 6

@sumanta are you there?

Answer 7

yeah

Answer 8

ok m i right on the first one

Answer 9

that line is going up to the right, so that means it's going to have a positive slope. so you can rule out choices a and b

Answer 10

ok @AriPotta

Answer 11

hey umm can you guys help me with second one?

Answer 12

y = −4.3x
plug in each value of x and solve for y. i'll do the first one.

y = -4.3(-3)
y = 12.9

Answer 13

oh so im mulply

Answer 14

yes

Answer 15

ok

Answer 16

so -4.3 (5) is 21.5

Answer 17

right

Answer 18

-21.5

Answer 19

oh ok

Answer 20

can you help me another one

Answer 21

you can post it and tell me what you think the answer is. i'll say if you're right or not

Answer 22

ok

Answer 23

What is the slope of the line passing through the points (–1, 3) and (4, –7)?



A. 2




B.3/4




C. -4/3




D. -2

Answer 24

i think its c

Answer 25

(-1,3) (4, -7)

Answer 26

do you know the slope formula?

Answer 27

i dont remember

Answer 28

(y2 - y1)/(x2 - x1)

Answer 29

oh ok.

Answer 30

so plug in the values and tell me what you get

Answer 31

ok

Answer 32

3 - -7 right

Answer 33

these are our two points (-1,3) (4, -7)

so we plug them into the formula
(-7 - 3)/[4 - (-1)]
-10/5
-2

Answer 34

oh ok i got it now tank you.

Answer 35

no problemo :)

Answer 36

and last one.

Answer 37

this is last one i swear

Answer 38

what does that say? y = 1/2x?

Answer 39

yes

Answer 40

and which one do you think it is?

Answer 41

A

Answer 42

because (1,2)

Answer 43

so slope is basically rise/run. our slope is 1/2. so starting from the origin, we'll go up (rise) 1, and go to the right (run) 2 to get a second point on the line

so our line should go through points (0,0) and (2,1)

Answer 44

so a is not the answer. which choice is a line that goes through those two points?

Answer 45

c?

Answer 46

yep

Answer 47

thankn you can i give you fan in case i neeed hselp because u give directions and help me

Answer 48

sure. and just tag me in your questions and i'll try to help

Answer 49

ok

Answer 50

can you give me best response tho?

Answer 51

Umm. Like what?

Answer 52

you see the blue button that says best response beside my comment? if you push it, it'll give me a medal :)

Answer 53

oh ok

Answer 54

thank you

Answer 55

np