Write an equation of the line in slope- intercept form (0,1) and (4,-1)

Answer 1

Hi Rhianah,

Slope is change in y/change in x

-1-1/4-0= -2/49= -2/4= -1/2

point slope formula y-y1=m(x-x1), where m is the slope and(x1,y1) are the points.

y-1=(-1/2)(x-0)

y=(-1/2)x+1 Answer

check to see if both points are on it

x=0 y=0

x=4, y= 2+1, and that is -1

Answer 2

Hi Rhianna,

The first thing you need to do is calculate the slope of the line that contains the two points, you can do this with the formula m= (y₂-y₁)/(x₂-x₁) where your two points are (x₁,y₁) and (x₂,y₂).

After you calculate your slope (m), use your slope and a point of your choice to find the equation of the line. It is up to you whether to use slope-intercept form or point slope form to do so.'

Slope intercept form: y=mx+b

Point slope form: y-y₁=m(x-x₁)

Best of luck!