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2 votes
Need help with point slope form

Need help with point slope form-example-1

2 Answers

6 votes
Hi there!

To find your answer, simply sub in the point and the slope into y-y1=m(x-x1) for y1, x1 and m!

m=-8
point: (1,-8) use this point for x1 and y1
y+8=-8(x-1)

Therefore your equation is y+8=-8(x-1)

Hope this helps!
User Sary
by
5.2k points
5 votes
Hey there!

A line passing through a point
(x_1,y_1) and with a slope of
m will have the following equation in point slope form:


y-y_1=m(x-x_1)

According to the given information, we know the following:


(x_1, y_1)=(1,-8)

x_1=1

y_1=-8


m=-8

Now, we can just plug in this information into the equation of
y-y_1=m(x-x_1)


y-(-8)=-8(x-1)

Simplify


y+8=-8(x-1)

That's your answer. Have an awesome day! :)

~AgentCozmo4, Junior Moderator
User Monty Khanna
by
6.4k points