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
ok sinse it a'perp' you have to use the reciprocal for m. so your new slope is 4. then you use the formula \[y-y _{1}=m(x-x _{1})\]
where \[y _{1}= -1 and x _{1}=7\]
lol i have no clue what a perp is. and when you have y=4x how do you get the y?
perp meand 90 degrees
means*
ohh okay then. do you have any clue how im post to find y?
perpendicular and just plug the numbers using the formula and yu get your line
oh thnks.
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
@hereweg0 The y value of the given point is 7, not -1.
oh okai :/ i undeerstand everything to find the slope, but i still dnt see how to find the y intercept
@rlongo yeah thanks. but just simplify and you get it too
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
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 :)
oh i now understand it xD @timo86m this may sound mean but i didnt understand everyone elses explanation o.O lol
Just curious, but what level of maths are you studying?
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
why?
Well because I am a great teacher :P
haha okay
I rushed btw lol
and the mods warn me I suck at OS :P
ah okay.
they want me suspended :P
why?
ur school???
no this site the mods warn me
lol whys that?
lol cuzz i dont play by the rules. Or so they say.
o.O theres rules?? haha
there are a ton
oh ops i hope i hvnt broken any hahaha xP
i dont think you have lol. Basically so long as you not just looking for answers. They want you looking for explanations.
oh really? thats stupid
i think so too but i follow the rules now lol. SORTA
lol 'Sorta' haha i just came on here to get awnsers for the questions i dont understand o.O
they want you to learn not just look for answers.
haha that's lame xP
i agree. but what choice do we have lol?
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