Question

what equation is solved by the graphed system of equations? (-1,-4)
@satellite73 @jim_thompson5910 @ganeshie8 @Hero @Directrix

Answer 1

there's missing info

Answer 2

there is a graph , but those are the points that are given

Answer 3

thats where the points cross

Answer 4

you only gave one point

post the graph please

Answer 5

one sec

Answer 6

those are the answer options as well

Answer 7

ok focus on the steeper line

Answer 8

what is the slope of that line?

Answer 9

idk (-1,-4)?

Answer 10

idk any of this

Answer 11

do you see how the point (-1,-4) and the point (0,3) they both lie on that steeper line?

Answer 12

yea

Answer 13

how many vertical units must you go up to get from (-1,-4) to (0,3) ?

Answer 14

up 1, to the right 7?

Answer 15

you have it flipped around

Answer 16

up 7
to the right 1

Answer 17

rise = 7
run = 1

slope = rise/run = 7/1 = 7

so the slope of the steeper line is 7

Answer 18

oh sorry

Answer 19

okay so what would i do next?

Answer 20

slope is 7, so m = 7

Answer 21

what is the y-intercept of that steeper line?

Answer 22

3?

Answer 23

so b = 3

Answer 24

m = 7, b = 3

y = mx+b
y = 7x + 3

Answer 25

y = 7x+3 is the equation of the steeper line

Answer 26

then do i put it in slope intercept formula?

Answer 27

yes plug m = 7 and b = 3 into y = mx+b

Answer 28

do you see how to find the equation of the other line?

Answer 29

so would the answer be A?

Answer 30

what did you get for the equation of the other line?

Answer 31

i didnt do it?

Answer 32

give it a shot

Answer 33

use the steps I showed above

Answer 34

im still kind of confused on how to do the second one? could u help?

Answer 35

whats the slope of that other line

Answer 36

well isnt the second line (3,0)?

Answer 37

that's a point on that second line

Answer 38

what is the slope

Answer 39

so would the rise/run be 3/4?

Answer 40

guessing

Answer 41

no

Answer 42

what is it?

Answer 43

start at (-1,-4) and try to get to another point on that second line

Answer 44

record the rise and run and tell me what you get

Answer 45

1/1?

Answer 46

yep, which reduces to 1

Answer 47

slope = 1

m = 1

Answer 48

the y-intercept is what?

Answer 49

0?

Answer 50

nope

Answer 51

look where the line crosses the y axis

Answer 52

3?

Answer 53

close, but no

Answer 54

idk the what is it?

Answer 55

you might be looking at the steep line

Answer 56

look at the other line

Answer 57

-1?

Answer 58

-4?

Answer 59

look where the nonsteep line crosses the y axis

Answer 60

the y axis is the vertical axis

Answer 61

idk i give up

Answer 62

lol

Answer 63

how did you get -1 and -4? I'm curious

Answer 64

oh you looked at the point (-1, -4) ?

Answer 65

yea

Answer 66

I see

Answer 67

the second line crosses, or intersects, the y axis

hopefully you see where I'm talking about

Answer 68

r u talking about -3?