Question

Choose the point-slope form of the equation below that represents the line that passes through the points (−3, 2) and (2, 1).

y + 3 = −5(x − 2)
y − 2 = −5(x + 3)
y + 3 = −(x − 2)
y − 2 = −(x + 3)

Answer 1

point slope form =

y - y1 = slope(x - x1)

Answer 2

ok

Answer 3

i would recommend finding the slope first, given the two points you have

Answer 4

which is - 1/5

Answer 5

so its c but C is -1/5

Answer 6

? your c just says -

Answer 7

not -1/5

Answer 8

i know but that was a typo

Answer 9

what does d say then?

Answer 10

C and D are both -1/5

Answer 11

the difference is D is +

Answer 12

okay, so now choose the first point, and substitute into the formula i gave you

Answer 13

which turns into C :)

Answer 14

no, it turns into D

y1 = 2
x1 = -3

y - 2 = -1/5(x -(-3))

Answer 15

understand?

Answer 16

yes :) so c is correct. thank u :) mind helping with 2 more?

Answer 17

i mean D

Answer 18

no, d is correct

Answer 19

good :)

Answer 20

opps sorry meant D :)

Answer 21

so mind with 2 more?

Answer 22

ok

Answer 23

Given the equation y − 3 = (x + 6) in point-slope form, identify the equation of the same line in slope-intercept form.

x − 2y = −12
y = 1/2x
y = 1/2x + 6
y = 1/2x + 9

Answer 24

slope intercept form =
y = mx + b
where m is the slope

Answer 25

did you forget to write the slope?

Answer 26

opps yes hold on

Answer 27

slope is 1/2

Answer 28

okay, so put

y - 3 = 1/2(x + 6)

into y = mx + b form

(hint, first distribute the 1/2)

Answer 29

so i got y-3 = 1/2x + 3

Answer 30

yup, keep going

Answer 31

so the answer would be C

Answer 32

oh, nevermind

Answer 33

? is that correct?

Answer 34

you got it

Answer 35

thxs! :) mind one more?

Answer 36

sure

Answer 37

Given the equation y − 4 =3/4 (x + 8) in point-slope form, identify the equation of the same line in standard form.

Answer 38

standard form =
Ax + By = C

Answer 39

start by distributing the 1/2 again

Answer 40

−3/4x + y = 10
3x − 4y = −40
y = 3/4x + 12
y = 3/4x + 10

Answer 41

i mean 3/4

Answer 42

not 1/2

Answer 43

ok

Answer 44

so i got y-4 = 3/4x + 6

Answer 45

yes, and so we need it in the form:

Ax + By = C

Answer 46

y = 3/4x + 10?

Answer 47

no, we need x and y on the same side

Answer 48

hmm

Answer 49

-3/4x + y = 10?

Answer 50

perfect, just subtract the -3/4x

Answer 51

so that would be the answer?

Answer 52

yes

Answer 53

thank you :)

Answer 54

aww i got it wrong :(

Answer 55

-3/4x + y = 10 was wrong? i guess they wanted you to multiply the 4 out.... lame. the question should have specified that

Answer 56

sorry :(

Answer 57

well i guess A shouldnt have been negative