173k views
1 vote
What is the slope-intercept equation of this line?

What is the slope-intercept equation of this line?-example-1
User Top Cat
by
7.7k points

2 Answers

2 votes

Answer:

y=-2x+8 (A)

Explanation:

Slope Formula: Y=mx+b

y2-y1/x2-x1

x1,y1=(0,8)

x2,y2=(6,-4)

-4-8/6-0

m= -2

Point 1: (0,8)

b=8

User Fiona Chen
by
7.9k points
7 votes

Answer:

A. y=-2x + 8

Explanation:

The slope-intercept formula is written as y=mx+b, where m is the slope and b is the y-intercept.

b can be easily found on the graph, as the point (0,8) is where the line crosses the y-axis, so b=8.

The slope can be found using the slope formula:


(y2-y1)/(x2-x1)

We can take either points as the first, and we'll reach this result.


(-4-8)/(6-0) = (-12)/(6) = (-2)/(1)

This means that the slope is -2 and the y-intercept is 8

So the final equation is choice (a.)

User Pawelo
by
8.4k points

No related questions found

Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.