Question

Complete the equation of the line through (2,-2) and (4,1) Use exact numbers.
y = ??
solve for y

I have to get it in slope intercept form

y = mx + b

Answer 1

do I stat with y2-y1

Answer 2

x2 - x1

Answer 3

start

Answer 4

and find the slope then put it back in the equation?

Answer 5

@thisgirlpretty

Answer 6

@umm

Answer 7

anyone?

Answer 8

@dude

Answer 9

The incline catch type of the situation of a line is : y = mx + b

The incline is addressed by m and the y-catch is addressed by b.

You can utilize the directions of the two focuses to discover the incline:

m = (y 2 - y 1)

(x 2 - x 1)

For this issue:

m = (4 - 2 ) = 2

(1 - 2) - 1

To decide the y-block , substitute the directions of one or the other point into the slant capture condition utilizing an incline of - 2:

y = mx + b

y = - 2 • x + b

Utilizing (1,4):

4 = - 2 • 1 + b

4 = - 2 + b

b = 6

The condition of the line will be : y = - 2•x + 6 The incline catch type of the situation of a line is : y = mx + b

The incline is addressed by m and the y-catch is addressed by b.

You can utilize the directions of the two focuses to discover the incline:

m = (y 2 - y 1)

(x 2 - x 1)

For this issue:

m = (4 - 2 ) = 2 (1 - 2) - 1

To decide the y-block , substitute the directions of one or the other point into the slant capture condition utilizing an incline of - 2:

y = mx + b y = - 2 • x + b Utilizing (1,4): 4 = - 2 • 1 + b 4 = - 2 + b b = 6

The condition of the line will be : y = - 2•x + 6

Answer 10

thats not the answer

Answer 11

-2 times x

Answer 12

u sure

Answer 13

that was wrong

Answer 14

it isnt -2x +6

Answer 15

X=-y-6/2

Answer 16

X=3 and y=6

Answer 17

thats wrong too

Answer 18

Me

Answer 19

i was looking at the top my bad

Answer 20

do you remember the rise run method I told you ?

Answer 21

first plot the lines on a graph

Answer 22

down or up and over right or left

Answer 23

there is no graph

Answer 24

you can always make one

Answer 25

Desmos

Answer 26

^

Answer 27

ok

Answer 28

its not plotting

Answer 29

3/2

Answer 30

is the slope

Answer 31

Yes

Now we substitute it into the general equation

y=\(\dfrac32x+b\)

From here you can choose either point 1 or 2 and substitute it in for x and y

Answer 32

and 4 is the y

Answer 33

If you choose point (4,1), 4 isn't the y

Answer 34

I choose

Answer 35

point 1

Answer 36

-2 + 2 equals zero

Answer 37

2+ 2 =4

Answer 38

isnt it 4 for the y intercept

Answer 39

Not quite, you just want to substitute it in the equation we got earlier

\(y=\dfrac32x+b\)

[From point 1, (2,-2)]
2 = x
-2 = y

You'll get:
\(-2=\dfrac32\cdot2+b\)

Does that make sense?

Answer 40

You want to isolate for b first

Answer 41

my brain hurts

Answer 42

xd

What is \(\dfrac32\cdot2\)?

Answer 43

3

Answer 44

Yes

So we have
\(-2=3+b\)

You subtract 3 from both sides

Answer 45

5

Answer 46

-5

Answer 47

Right

So the equation of a line is y=mx+b

We only need m and b (which we just solved)

So we have \(y=\dfrac32x-5\)

Answer 48

tnx

Answer 49

tnx

Answer 50

Complete the equation of the line through (-6,-5)( -4, -4)
Use exact numbers.
y =??

I need to answer the question in y= mx+ b format

Answer 51

1/2 would be slope right

Answer 52

Yes

Answer 53

Now choose one of the points and substitute it in the general equation

Answer 54

point 1

Answer 55

(
-6, -5)

Answer 56

\(-5=\dfrac12\cdot-6+b\)

Do you know how to solve for b?

Answer 57

1/2

Answer 58

times -6?

Answer 59

Yes

Answer 60

-3

Answer 61

\(-5=-3+b\)

Last step?

Answer 62

-8

Answer 63

Close

You would have to add 3 on both sides

Answer 64

8

Answer 65

\(-5+3\)

Answer 66

-2

Answer 67

Righto

Putting it back into the general equation
\(y=\dfrac12x-2\)

Answer 68

tnx

Answer 69

Complete the equation of the line through (1,4) and (2,2)

Answer 70

Use exact numbers.

Answer 71

Lets make a new post

Answer 72

-2/1

Answer 73

is the slope right