188k views
4 votes
Please help I learned this a while ago and forgot how to do it

Please help I learned this a while ago and forgot how to do it-example-1
User Isabell
by
3.2k points

1 Answer

4 votes

Answer:

The slope-intercept form is
y=(1)/(2)x+(11)/(2)

Explanation:

To find the slope, use


m=(y^2-y^1)/(x^2-x^1)

Replace the x and y values with the points.


m=(7-5)/(3-(-1))

Solve.


m=(2)/(4)


m=(1)/(2)

After that, find the y-intercept form.

Put the equation in point-slope form.


y-5=(1)/(2)(x+1)

Replace x with 0.


y-5=(1)/(2)(0+1)


y-5=(1)/(2)

Add 5 to both sides.


y=5(1)/(2)

Convert to improper fraction form.

The y-intercept is
(11)/(2)

Now finally, write in slope-intercept form. (y=mx+b)

m is slope, b is the y-intercept.

User Chitza
by
3.5k points