Question

Write an equation in slope-intercept form for the line shown.

http://roads.advancedacademics.com/contentserver/content/roadssection/277812/questions/4-hw7/slope_intercept_2.gif

A. y = 2/3 x + 2
B. y = 3/2 x - 4
C. y = 3x - 4
D. y = 2x - 1

Answer 1

find the slope between (0,-4) and (2,-1)

Answer 2

ok I got 3/2 now what

Answer 3

which choice has 3/2 as the slope?

Answer 4

b

Answer 5

so that's your answer :)

Answer 6

can you help me on this question Write an equation in slope-intercept form of the line with the given slope and point: slope = 3 and (1, -2).
A. y = 3x - 5
B. y = 3x - 2
C. y = 3x + 1
D. y = 3x + 3

Answer 7

put the information in point-slope form, then change it into slope-intercept form

Answer 8

how do i make it into point slope form

Answer 9

point-slope form is y - y1 = m(x - x1)

Answer 10

I know that but how to I fill that in to then make it slope intercept form

Answer 11

you put the numbers in first, then you can rearrange to make it into slope-intercept

Answer 12

where would I put the numbers

Answer 13

they give you the point (1, -2). so -2 would be y1 and 1 would be x1. they also give you the slope, 3. so 3 would be m

Answer 14

would y and x not y1 and x1 but y and x become 0

Answer 15

also would it look like this y--2=3(x-1)

Answer 16

yes. y + 2 = 3(x - 1). now distribute the 3 into the parentheses

Answer 17

y+2=(3-1)

Answer 18

no, to distribute, you have to multiply 3 with x, and 3 with -1

Answer 19

so y+2=3-3

Answer 20

it would be 3x, not just 3 :) y + 2 = 3x - 3. now, what should we do to get it in the form of y = mx + b? it's our last step

Answer 21

subtract 2 from each side

Answer 22

would that be the right step

Answer 23

yea

Answer 24

so it's either b or c

Answer 25

so the answer is..?

Answer 26

when i calculate it it comes up with y=3x-1 but that isn't an answer

Answer 27

did i do that wrong

Answer 28

what's -3 - 2?

Answer 29

-5

Answer 30

so a

Answer 31

yup

Answer 32

thanks if I have any other questions I will send you a message

Answer 33

mmk

Answer 34

on this question I came up with c is that right Write the equation y - 2 = 4(x + 5) in standard form.
A. 4x + y = 7
B. 4x - y = 3
C. 4x - y = -22

Answer 35

yes, it's c :)

Answer 36

k

Answer 37

is this question answer c Write the point-slope form of the equation passing through (5, -1) with a slope of 6.
A.
y-1=6(x+5)
B.
y+5=6(x-1)
C.
y+1=6(x-5)
D.
y-5=6(x+1)

Answer 38

yes, that's also c

Answer 39

is this c to Find the direct variation equation which passes through (0, 0) and (4, 1).
A. y = 4x
B. y = -4x
C. y = 1/4 x
D. y = -1/4 x

Answer 40

yes. it's c lol.

Answer 41

is this one d Write an equation in slope intercept form of the line that passes through (4, 1) and (5, -1).
A. y = -4x + 1
B. y = -1/2 x + 9
C. y = 4x + 1
D. y = -2x + 9

Answer 42

yes

Answer 43

I think this is c Which of the direct variation equations has this graph?
http://roads.advancedacademics.com/contentserver/content/roadssection/277812/questions/4-hw7/direct_variation_7.gif
A. y = 2/3 x
B. y = 3x
C. y = 1/2 x
D. y = 2x

Answer 44

that's a

Answer 45

how ?

Answer 46

find the slope between (0,0) and (3,2)

Answer 47

ok found it thanks!

Answer 48

is this b Find the direct variation equation of the graph through the points (0, 0) and (1, -2). Write in y=kx form.
A. y = 2x
B. y = -2x
C. y = 1/2 x
D. y = -1/2 x

Answer 49

yes, b

Answer 50

thanks

Answer 51

How would I do this step by step Write the slope-intercept equation of the line perpendicular to y = 5/2 x - 2, which passes through the point (0, 2).
A. y = 5x + 2
B. y = -2/5x + 2
C. y = 2x + 5
D. y = 1/2x + 5

Answer 52

perpendicular lines have negative reciprocal slopes. so our line should have a slope of -2/5

Answer 53

now we can put that info into point-slope form

Answer 54

b

Answer 55

oh lol. you didn't even need to do any math

Answer 56

so its b

Answer 57

yea

Answer 58

would this be c Write the slope-intercept form of the equation parallel to y = 7x + 2, which passes through the point (1, -3).
A. y = 7x - 10
B. y = -1/7 x + 2
C. y = 7x - 3
D. y = -7x + 10

Answer 59

or d

Answer 60

?

Answer 61

well it wouldn't be d. parallel lines share the same slope, so it's either a or c

Answer 62

i think c

Answer 63

it's a

Answer 64

ok how would i get that on my own? step by step

Answer 65

put it into point-slope form, then change it to slope-intercept form

Answer 66

y + 3 = 7(x - 1)
y + 3 = 7x - 7
y = 7x - 10

Answer 67

ok would this be b The slope of the line perpendicular to y = 3/4 x - 7 is
A. 3/4
B. -4/3
C. 4/3
D. -3/4

Answer 68

yes, that's b

Answer 69

how would i figure this out Is a shape with the vertices (2, 4), (2, -2), (-1, -2), and (-2, 4) best classified as a parallelogram, rectangle, or neither?

Answer 70

ugh. i hate these questions

Answer 71

I almost started to cry when I saw that question

Answer 72

lol. i would plot it out first before i did the distance formula

Answer 73

ok

Answer 74

http://roads.advancedacademics.com/contentserver/content/roadssection/277823/questions/5-hw1/662.gif
A. n is greater than or equal to -8
B. n is greater than or equal to 8
C. n is greater than or equal to 2
D. n is greater than or equal to -2

Answer 75

which do you think?

Answer 76

b

Answer 77

yes :)

Answer 78

Which statement is best represented by
http://roads.advancedacademics.com/contentserver/content/roadssection/277825/questions/5-hw2/677.gif
A. One fourth times a number is at least 12.
B. One fourth times a number is greater than 12.
C. One fourth times a number is at most 12.
D. One fourth times a number is less than 12.

Answer 79

I was think b or c

Answer 80

at most means less than or equal to

Answer 81

so it's not c

Answer 82

and it would be b if it there wasn't a line underneath the inequality

Answer 83

but since there is...it's not b

Answer 84

and we know it's not d...

Answer 85

so it must be...

Answer 86

Solve the following: b + 4 < -8.
A. b < -12
B. b < -4
C. b > 12
D. b > 4

Answer 87

which do you think?

Answer 88

b

Answer 89

no. what's -8 - 4?

Answer 90

-12

Answer 91

yes, so it's a. can you make a new question thread now? lol sorry, but when it gets too long, i start to lag

Answer 92

thanks and ok