Mathematics
9 Online
OpenStudy (anonymous):
Choose the equation below that represents the line passing through the point (-3, -1) with a slope of 4.
y = 4x - 11
y = 4x + 11
y = 4x + 7
y = 4x - 7
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hartnn (hartnn):
in the equation y=mx+c
m =slope = 4
y= 4x+c
plug x = -3, y = -1 in this to find the value of c
OpenStudy (anonymous):
thank you!
hartnn (hartnn):
welcome ^_^
if you want me to verify, tell me what u get for 'c' :)
OpenStudy (anonymous):
tell me what you got and ill tell you what i got
hartnn (hartnn):
tell me what you got and ill tell you what i got
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OpenStudy (anonymous):
thats lame man
OpenStudy (anonymous):
idk how to do this ok im only 10
OpenStudy (anonymous):
plz help meh
hartnn (hartnn):
y= 4x+c
-1 = 4(-3) +c
what is 4 (-3) =.. ?
OpenStudy (anonymous):
pliiiiz help
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hartnn (hartnn):
relax, i am helping :)
OpenStudy (anonymous):
hold on while i pull out my calculator
OpenStudy (anonymous):
-12
hartnn (hartnn):
yes,
so,
-1 = -12 + c
add 12 on both sides of the equation, what do u get ?
OpenStudy (anonymous):
-13=12+c
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hartnn (hartnn):
how ?
hartnn (hartnn):
-1 + 12 = -12 + 12 +c
OpenStudy (anonymous):
idk gosh im onlya youngen
hartnn (hartnn):
whats -12 + 12 ?
-1 + 12 ?
OpenStudy (anonymous):
0 and then 11
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hartnn (hartnn):
yes
so,
11 = 0+c
so, c= 11
got this ?
OpenStudy (anonymous):
ya i feel you
OpenStudy (anonymous):
but that isnt an answer choice
hartnn (hartnn):
it is
c= 11
y = 4x+c
gives
y= 4x+11
OpenStudy (anonymous):
thats what i was about to say lol thanks for your help dude
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hartnn (hartnn):
welcome ^_^