Choose the correct equation of a line, in point-slope form, given the point (-1,3) and a slope, m, of 1/2.
1) y+1=1/2(x-3)
2) y-3=1/2(x+1)
3) y+3=1/2(x-1)
4) y-1=1/2(x-3)

Question

Choose the correct equation of a line, in point-slope form, given the point (-1,3) and a slope, m, of 1/2.
1)	y+1=1/2(x-3)
2)	y-3=1/2(x+1)
3)	y+3=1/2(x-1)
4)	y-1=1/2(x-3)

aravindg · Answer

Equation in point slope form is given by:

$y-y_1=m(x-x_1)$

where $$(x_1,y_1) $$is the point and m is the slope.

beccab003 · Answer

So is the answer the second or third?

beccab003 · Answer

it has to be y-3 or y+3 because 3 is the y coordinate in the equation.

aravindg · Answer

Why do you have a confusion? y-y1 
y1=?

beccab003 · Answer

So is the answer the third one?

beccab003 · Answer

the 3 is positive