need help with this question If a line passes through the points (-2, -4) and (3, -1), the equation of the line isy+ 4 = 3/5(x+ _____).

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- May 6th 2010, 11:33 AMdaniel323Finding equation of a line given two points.
need help with this question If a line passes through the points (-2, -4) and (3, -1), the equation of the line is

*y*+ 4 = 3/5(*x*+ _____). - May 6th 2010, 11:43 AMsid_178
Using slope point form:y-y1=m(x-x1)

where m=(y2-y1)/(x2-x1)

Equation of line is

5y+20=3x+6

=>y+4=3/5(x+2)

so the answer is 2 in the fill in the blanks . - May 6th 2010, 11:44 AMDinkydoe
See it like this:

If $\displaystyle f(x)= ax+b$ is the line passing through the given points:

First we have: $\displaystyle f(-2)= -2a+b=-4$

$\displaystyle f(3) = 3a+b = -1$

From these 2 equations you can determine a,b - May 6th 2010, 05:24 PMmr fantastic
Duplicate post. See here: http://www.mathhelpforum.com/math-he...help-asap.html

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