Question

Choose the equation of the line passing through the point (-1, 7) and perpendicular to y = -1/4x-5
y = -4x - 11

y = -4x - 3

y = 4x + 11

y = 4x + 3

Answer 1

ok sinse it a'perp' you have to use the reciprocal for m. so your new slope is 4. then you use the formula \[y-y _{1}=m(x-x _{1})\]

Answer 2

where \[y _{1}= -1 and x _{1}=7\]

Answer 3

lol i have no clue what a perp is. and when you have y=4x how do you get the y?

Answer 4

perp meand 90 degrees

Answer 5

means*

Answer 6

ohh okay then. do you have any clue how im post to find y?

Answer 7

perpendicular and just plug the numbers using the formula and yu get your line

Answer 8

oh thnks.

Answer 9

well first use this equation
y=mx+b where m is your slope and b is y intercept

To find a slope perpendiculare you must must invert m and multiply by -1 your m is
-1/4

so it is 4 if we invert and multiply by -1

Answer 10

@hereweg0 The y value of the given point is 7, not -1.

Answer 11

oh okai :/ i undeerstand everything to find the slope, but i still dnt see how to find the y intercept

Answer 12

@rlongo yeah thanks. but just simplify and you get it too

Answer 13

if you are looking for a line that passes through the point (-1,7) and you know the slope is 4, plug in the given numbers into the y intercept formula for a line.

y=mx+b
7=4(-1)+b

Solve for b

Answer 14

well you are given
Choose the equation of the line passing through the point (-1, 7) and perpendicular to y = -1/4x-5

and i showed you the formula y=mx+b and i said 4 is your slope so

plug in (-1,7)

7=4*-1+b

sfb b=11

so now

y=4*x+11 :)

Answer 15

oh i now understand it xD @timo86m this may sound mean but i didnt understand everyone elses explanation o.O lol

Answer 16

Just curious, but what level of maths are you studying?

Answer 17

im doing algebra 1 im doing florida virtual school, and they dont explain anything very well. But in August im starting geomotry in 10th grade

Answer 18

why?

Answer 19

Well because I am a great teacher :P

Answer 20

haha okay

Answer 21

I rushed btw lol

Answer 22

and the mods warn me I suck at OS :P

Answer 23

ah okay.

Answer 24

they want me suspended
:P

Answer 25

why?

Answer 26

ur school???

Answer 27

no this site
the mods warn me

Answer 28

lol whys that?

Answer 29

lol cuzz i dont play by the rules. Or so they say.

Answer 30

o.O theres rules?? haha

Answer 31

there are a ton

Answer 32

oh ops i hope i hvnt broken any hahaha xP

Answer 33

i dont think you have lol. Basically so long as you not just looking for answers. They want you looking for explanations.

Answer 34

oh really? thats stupid

Answer 35

i think so too but i follow the rules now lol. SORTA

Answer 36

lol 'Sorta' haha i just came on here to get awnsers for the questions i dont understand o.O

Answer 37

they want you to learn not just look for answers.

Answer 38

haha that's lame xP

Answer 39

i agree. but what choice do we have lol?