Question

If you could help, that would be GREAT! :D
Question 1

What is the equation of a vertical line passing through the point (3, –5)?

y = –5

x = –5

y = 3

x = 3

Question 2

Solve –2(2x – 3) = –6

x = –3

x = 6

x = 0

x = 3

Answer 1

2)
-4x + 6 = - 6
-4x = - 12
divide both sides by - 4
x = 3

Answer 2

agreed

Answer 3

So thats the answer for the seccond one? what about the first?

Answer 4

Ley y = mx + b

Answer 5

slope m = ya - yb/xa - xb =.....

Answer 6

In this case, there is one point!, so

Answer 7

how do you get rid of the B if i have this problem -5=3x+b

Answer 8

that isn't right, first you need to find the slope

Answer 9

ooh... so do the point slope form. ?

Answer 10

since the slope for a vertical slope is infinite or none, there is no need for m in the equation.....

Answer 11

so, it becomes y = x + b

Answer 12

ok?

Answer 13

Yes, I get it now :) thank you!

Answer 14

just take these notes and remember them,
for a vertical line, the slope is infinity or none, for a horizontal line it is 0, for any other line, use the slope formula to figure out m, which is the slope

Answer 15

good job

Answer 16

any other problems?

Answer 17

soo.. I think its x=-5? correct? or is it y=-5?

Answer 18

and yes i have more problems

Answer 19

ok then post them and i will help u

Answer 20

or you can do it this way point slope form

y-y1=m(x-x1)

where x1 and y1 is your point (x1,y1)

we know the point is (3, –5)

so x1=3 and y1=-5 and we know that a vertical line has no slope so m=0

plug that in and we have

y+5=0(x-3)

that right side turns into zero

y+5=0


subtract 5 to both sides to get y by itself

y=-5

and there you go

Answer 21

y = -5

Answer 22

thanks :D

Answer 23

np

Answer 24

Question 3

What is the equation of the line passing through (2, –2) and perpendicular to the line y = –x + 3 in slope-intercept form?

y = x

y = –x

y = x – 4

y = x + 4

Question 4

To which graph does the point (–1, –4) belong?

y < –x + 4

y < –x – 5

y < 2x – 3

y < 5x + 1

Question 5

What is the standard form equation of the line passing through (5, –3) with a slope of –3?

3x + y = 12

3x + y = –12

3x – y = 12

3x – y = –12

Answer 25

give me a sec

Answer 26

ok :)

Answer 27

for questions 3 all you have to do is follo my point slope form

you have your x1 and y1 and now you need your slope. The slope will be a the negative reciprocal of the slope of the other function given.

Answer 28

for q 5:
let y=mx +c,
-3= -15 + c
12=c
y= -3x +12,
thus 3x + y = 12

Answer 29

p.s......i think the other guy doesn't know math, but wants to pretend to be smart, lol.....

Answer 30

for q 4:
Y < -X + 4.
You put (-1) in for X & (-4) in for Y.
(-4) < -(-1) +4. -4 < 1 + 4. -4 < 5 is true.
(-4) < -(-1) - 5. -4 < 1 - 5. -4 < -4 is false.
-(4) < 2(-1) - 3. -4 < -2 -3. -4 < -5 is false.
(-4) < 5(-1) + 1. -4 < -5 + 1. -4 < -4 is false.

Answer 31

for q 3, i was a bit stuck but now i got it, hold on

Answer 32

hahaha :P well, i suck at math too :P and thank you for helping mee :) ur the best! lol

Answer 33

thnxs np, hold on i almost got 3

Answer 34

First, put the line x+y-1=0 into the slope intercept form

Answer 35

ex

Answer 36

your equation is, already in it, my bad

Answer 37

Next, find the reciprocal of the slope,

Answer 38

-3, i think

Answer 39

Next, put into point slope form of the perpendicular line using the point

Answer 40

y + 2 = 3(x - 2)

Answer 41

i did this wrong hold on

Answer 42

ok.

Answer 43

i think its y = x, just by looking at it

Answer 44

definitely y = x

Answer 45

any others?

Answer 46

ok :D and yesss

Answer 47

cool

Answer 48

Solve 2 – 5x = x – 10

x = –3

x = –2

x = 2

x = 3
I got x=-2 is that correct?

Answer 49

yes

Answer 50

oh no

Answer 51

let me show u

Answer 52

Question 10
What is the vertex of the graph of y = |–x + 4| + 1?

(5, –1)

(4, 5)

(4, 1)

(5, 1)

Question 11

Solve 3x + 2y = –12 for y.

y = three-halvesx – 6

y = negative three-halvesx – 6

y = three-halvesx – 12

y = negative three-halvesx – 12

Answer 53

okay

Answer 54

2 - 5x = x - 10,
-5x-x = -10-2,
-6x = -12,
6x = 12,
x = 2,.....ok?

Answer 55

oh! okayyyyy :)

Answer 56

I'm working on 10 and 11 now

Answer 57

ok

Answer 58

for q 10:
+1 is the y value and,
-x+4=0
-x=-4
-x/-1=-4/-4
=4
therefore (4,1)

Answer 59

ok! thats what i got as well :)

Answer 60

for q 11;
3x + 2y = –12,
2y = -12 - 3x,
y = -3x -12/2,

Answer 61

well i gtget some sleep, but tell me next time your on open study, and ill help u,k?

Answer 62

do u know when?

Answer 63

Okay! sounds great! :D thank you so much for all your help! I really depreciate it :)

Answer 64

np, message me any more problems k?
Im on here every day from 7 - 10 pm ok?
ill se yah, p.s. Im from el segundo ca, where u from?

Answer 65

lol bye

Answer 66

ok, i will :) and thats cool. haha, im from Florida! lol byee ttyl