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)

Answer 1

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.

Answer 2

So is the answer the second or third?

Answer 3

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

Answer 4

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

Answer 5

So is the answer the third one?

Answer 6

the 3 is positive