Question

Find the slopes of the following figures

Answer 1

Please show us the figure

Answer 2

can you help me graph them on demos calculator with the same format

Answer 3

which graph ?

Answer 4

all of the above in the same format

Answer 5

we already did first graph :/

Answer 6

1 one was 3x-2

Answer 7

Correct ! graph it in desmos.

Answer 8

type in below :

`y = 3x-2`

Answer 9

slope = rise / run = 3/1
from where did we get 2

Answer 10

its NOT 2,
its \(\color{red}{-}2\) okay ?

Answer 11

yep but from where did we got -2

Answer 12

Look at the blue line,

Answer 13

where does the `blue line` intersect the `vertical thick black line` (y axis) ?

Answer 14

so that means -2 is C

Answer 15

You got it !!

-2 is called the `y intercept`

Answer 16

http://prntscr.com/3pun2w

So this graph is correct

Answer 17

Absolutely !! and btw, a very good job :)

Answer 18

but i want to reduce the boxes in the graph do you know how can we do it

Answer 19

do u have teamviewer ?

Answer 20

In desmos :
Look at `top - right` corner, you will find controls for "Zoom in" and "Zoom out"

Answer 21

click `-` to zoom out
click `+` to zoom in

Answer 22

you need to click `-` as u want to reduce the size of boxes

Answer 23

can we do the second graph

Answer 24

Okay, can u tell me the `slope` of blue line in second graph ?

Answer 25

Looks like, to rise 1 grid, it is running 8 grids to right, eh ?

Answer 26

So, slope = m = rise/run = 1/8

Answer 27

what about the y intercept, where does it cut the y axis ?

Answer 28

it between 2 and 1

Answer 29

Yes ! at `1.5`

Answer 30

so the equation of line is :

\(\large y = \dfrac{1}{8}x + 1.5\)

Answer 31

ok
http://prntscr.com/3pur1w

Answer 32

Excellent !!

Answer 33

I'll let you work the 3rd graph on ur own :)

Answer 34

leme knw if u feel stuck, just find below :
1) slope
2) y intercept

Answer 35

and plugin

Answer 36

damn you're fast lol

Answer 37

you're very close, but no. wait

Answer 38

where is the `blue line ` cutting y axis at ?

Answer 39

y=4x+1.5

Answer 40

step by step

Answer 41

its 1.5

Answer 42

no look at it again, and btw you're looking at 3rd graph right ?

Answer 43

yea

Answer 44

the graph where the blue line is falling down... that one right ?

Answer 45

look at it again, where does the blue line cross the y axis ?

Answer 46

i think i have drawn the figure wrong

Answer 47

You haven't answered my question yet :/

Answer 48

my question is this :
where does the blue line cross the y axis ?

Answer 49

i compared the pic from the practice sheet its drawn all wrong

Answer 50

http://prntscr.com/3puuk5

Answer 51

i took the pic i hope its clear

Answer 52

ugh dont hope, have a look lol its not clear at all

Answer 53

according to the pic y intercept is between 1and 2

Answer 54

ofcorurse its photo copied

Answer 55

post a better pic if possible

Answer 56

trying

Answer 57

are u taking the pics wid ur webcam ?

Answer 58

no mobile cam i dont have the software for web cam

Answer 59

ok its hard to help with those blurred images,
il let u work these on ur own :)

Answer 60

now i think its more clear

Answer 61

yes, to me the line seem to cut the y axis at `3`

Answer 62

and it is falling down by 4 grids, after running right for 1 grid
so slope = m = rise/run = -4/1 = -4

Answer 63

So the equation would be :

```
y = -4x + 3
```

Answer 64

http://prntscr.com/3pv166

Answer 65

can you point out -4 and 1

Answer 66

The line is starting at 3,
after going right for 1 grid, the line is falling down by 4 grids

Answer 67

so, fall = 4
run = 1

Answer 68

in the graph

Answer 69

http://prntscr.com/3pv2uo

Answer 70

-1-3 = -4

Answer 71

so -4 are number of grids

Answer 72

4 is the number of grids the line is falling

Answer 73

its `-4` cuz the line is falling, instead of rising..

Answer 74

how are we getting -3 isnt it +3