184k views
2 votes
What is the equation of the line in slope-intercept form?

12 points plz help!!!

What is the equation of the line in slope-intercept form? 12 points plz help!!!-example-1

1 Answer

5 votes

Answer:
y=-2x-4

Explanation:

The slope-intercept form of the line is:


y=mx+b

Where m is the slope and b the intersection with the y-axis.

You can see in the graph that line intersect the y-axis at
y=-4, then:


b=-4

Choose two points and substitute them into the formula for calculate the slope. This is:


m=(y_2-y_1)/(x_2-x_1)

Let's pick the points (-4,4) and (-6,8). The the slope is:


m=(4-8)/(-4-(-6))=(-4)/(2)=-2

Substituting into the equation, you get:


y=-2x-4

User Kosh
by
5.4k points