Question

What s the equation of a line that passes through points (-1,3) and (0,1)

what is the equation of the line that passes through the points (-1,3) and (o,1)
what is the equation of the line that passes through the points (-1,3) and (0,1)?

Answer 1

y = -2x + 1

Explanation:

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

using (-1,3) and (0,1)

m = (1 - 3)/(0 - -1)

m = (-2)/(1) = -2

Slope-intercept: y = mx + b

using (-1,3)

then 3 = -2(-1) + b

3 = 2 + b

b = 1

y = -2x + 1

Answer 2

the equation of the line is : y +2x = 1