69.9k views
5 votes
Complete the point-slope equation of the line through (-4,8) and (4,4)

User Bdew
by
5.6k points

2 Answers

4 votes

Slope formula - (y² - y¹) / (x² - x¹)

(-4, 8) (4, 4)

x¹ = -4

x² = 4

y¹ = 8

y² = 4

4 - 8 = -4

4 - - 4 = 8

Two negatives equal a positive

Simplify -4/8 = -1/2

Answer - -1/2

Hope this Helps!!

User Pierre De Buyl
by
6.1k points
1 vote

Answer:

y-4= -1/2(x-4)

Explanation:

First you have to find the slope to write it in point slope

to do this you find change in Y over change in X

From -4 to 4 is postivite 8 and from 8 to 4 its -4

Now you do -4 divided by 8 and get -0.5 or -1/2 for slope now pick one of the points and put it in the formula y-y1=m(x-x1)

User Stijn Sanders
by
5.9k points