Question

Indicate, in standard form, the equation or inequality that is shown by the graph.

Answer 1

looks a lot like \(y=-x+4\)

Answer 2

\(y\)-itnercept is 4 and slope is \(-1\)

Answer 3

@satellite73 if you have time can you stick here for a lil and help me ?

Answer 4

sure go ahead and post

Answer 5

i have more questions like this that i dont understand

Answer 6

Circle P is tangent to the x-axis and the y-axis. If the coordinates of the center are (r, r), find the coordinates of the points of tangency.

Answer 7

okay
did you see how that one was done? the y intercept is where it crosses the y axis

Answer 8

what is the question for that one?

Answer 9

no i didnt exactly understand the process but i het the gist of it

Answer 10

Circle P is tangent to the x-axis and the y-axis. If the coordinates of the center are (r, r), find the coordinates of the points of tangency.

Answer 11

if the center is \((r,r)\) then the points of tangency are \((0,r)\) and \((r,0)\)

Answer 12

yess okay i get that i think

Answer 13

For parallelogram ABCD, A(0, 0), B(a, b), and D(c, 0) are three of its vertices. Find the coordinates of C in terms of a, b, c.

Answer 14

yeah that is more or less straight forward

Answer 15

no that was wrong, hold on a sec

Answer 16

kk

Answer 17

a+c,b

Answer 18

\((a+c,d)\) i think is right yes?

Answer 19

not an option

Answer 20

i am sorry, i meant \((a+c, b)\)

Answer 21

Circle P is tangent to the x-axis and the y-axis. If the coordinates of the center are (r, r), find the slope of the line through the origin and the center.

Answer 22

that slope would be 1

Answer 23

its all good i appreciate you helping me btw

Answer 24

Indicate in standard form the equation of the line passing through the given points.

E(-2, 2), F(5, 1)

Answer 25

ok we need the slope first

Answer 26

okay let me get that really quick

Answer 27

from -2 to 5 is right 7, from 2 to 1 is down 1 slope is \(-\frac{1}{7}\)

Answer 28

oh well thank you love:)

Answer 29

yw
now you need the point slope formula to get the equation

Answer 30

whats that one again like y=m+a or something like that

Answer 31

\[y-1=-\frac{1}{7}(x-5)\]

Answer 32

lol no that is not the form of anything
\[y=mx+b\] is the slope intercept form
\[y-y_1=m(x-x_1)\] is the point slope form

Answer 33

you want standard form

Answer 34

oh yes lol okay thank you

Answer 35

which is ?

Answer 36

A+B=?

Answer 37

ugh im not good at remembering formulas i alwys write them down

Answer 38

\[y-1=-\frac{1}{7}(x-5)\]
\[7y-7=-x+5\]
\[7y+x=12\] i think is the form you want

Answer 39

the one that looks like \[ax+by=c\] or something similar

Answer 40

is it possible its x+7y=12?

Answer 41

yes, you should probably put the \(x\) first

Answer 42

okay :D

Answer 43

Circle P is tangent to the x-axis and the y-axis. If the coordinates of the center are (r, r), find the equation of the line containing the points of tangency.

Answer 44

ow did you get that?

Answer 45

but its not an option

Answer 46

no that was wrong, i read too quickly

Answer 47

x+y=1?

Answer 48

line containing point of tangency \((0,r)\) and \((r,0)\) is \(y=-x+r\)

Answer 49

x-y=r?

Answer 50

or \(x+y=r\)
there must be an \(r\) in your answer

Answer 51

slope is \(-1\) to it must be \(x+y=r\)

Answer 52

oh okay i understand how its that

Answer 53

In rectangle ABCD, if the coordinates of A are (0, 0) and of C are (r, s), find the coordinates of B.

Answer 54

\(B=(0,s)\)

Answer 55

it is on the \(y\) axis, so the first coordinate is zero

Answer 56

ohhh right okay

Answer 57

In equilateral triangle RST, R has coordinates (0, 0) and T has coordinates of (2a, 0). Find the coordinates of S in term

Answer 58

on line class?

Answer 59

yup geometry is the only one i have trouble learning online

Answer 60

no one to tell if you are doing it wrong or right

Answer 61

yeah i can see this would be annoying
i think a lot of it is algebra of some kind

Answer 62

well it is and i did really goo di nalgebra its just knowhing what formulas to use and what the formulas are

Answer 63

In equilateral triangle RST, R has coordinates (0, 0) and T has coordinates of (2a, 0). Find the coordinates of S in terms of a. (this was a correction of the last one )

Answer 64

first coordinate is \(a\)

Answer 65

second coordinate is \(a\sqrt{3}\)

Answer 66

if it is equilateral
so the answer should be
\[(a, a\sqrt3)\]

Answer 67

Find the coordinates of the other endpoint if the midpoint is M(8, 2) and the other endpoint is P(5, 6).

Answer 68

nvm that one is easy i know it

Answer 69

Given the points A(0, 0), B(e, f), C(0, e) and D(f, 0), determine if line segments AB and CD are parallel, perpendicular or neither.

Answer 70

i need paper, having trouble keeping all the letters straight in my head
hold on

Answer 71

hahha okay thats fine sounds like me

Answer 72

i got confused, but once i wrote it down it seems they are perpendicular

Answer 73

one has slope \(\frac{f}{e}\) other one has slope \(-\frac{e}{f}\)

Answer 74

so their exactopposites which makes them perpendicular

Answer 75

Find the length of the radius of the given circle.

(x - 5)2 + (y + 3)2 = 25

Answer 76

i don't know what "exactopposites" means, but if it means "negative reciprocal" then yes

Answer 77

radius is the square root of 25, which is 5

Answer 78

hahahhaha yes you got it, thats what i meant

Answer 79

yayyyy okay how much longer can you stick around?

Answer 80

your really amazing and helpful seriously

Answer 81

i am watching buzby berkley musicals on tcm, and typing at the same time
you got more?

Answer 82

yesss prob like a ton but idk how long you can hlep

Answer 83

actually it is busby berkeley

Answer 84

whats that about>/?

Answer 85

go ahead and post, i will tell you when i have had enough

Answer 86

http://www.youtube.com/watch?v=_r3KdTL6mjk

Answer 87

hahahaha okay thank you i appreciate it soo much you have no clue

Answer 88

no problem

Answer 89

okay i have 23 more questions