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OpenStudy (anonymous):
Please help!!!!! A line passes through the point (-4, -6) and has a slope of 3. Write an equation for this line.
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OpenStudy (anonymous):
y= 3 x +b
you need to find b
OpenStudy (anonymous):
f(x)=3x + 6
OpenStudy (anonymous):
this is what I came up with: is the be 2? @eliassaab
OpenStudy (anonymous):
-6= 3(-4) + b
b=6
y = 3x +1
OpenStudy (anonymous):
No, the 'b' is 6.
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OpenStudy (anonymous):
wait doesn't 3*-4=-12
OpenStudy (anonymous):
@eliassaab
OpenStudy (anonymous):
Yes, but you have to add -6 to both sides
OpenStudy (anonymous):
where in the world do you have add six to both sides?
OpenStudy (anonymous):
Then you have to subtract b to both sides which would get you -b, then you have to multiply each term by -1 to get rid of the negative sign on 'b'.
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OpenStudy (anonymous):
you would divide 6 to both sides not add
OpenStudy (anonymous):
-6= 3(-4) + b
-6 = -12 + b
-6 + 6 = -12 + 6 + b
0 = -6 + b
-b = -6
Multiply each term by -1:
b = 6
OpenStudy (anonymous):
No, you would add, you only divide when you have a variable being multiplied to a number.
OpenStudy (anonymous):
y=3 x +6
It was a misprint in my previous post
OpenStudy (anonymous):
-6= 3(-4) + b
b=6
y = 3x +6
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OpenStudy (anonymous):
thanks guys
OpenStudy (anonymous):
No problem.
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