130k views
2 votes
99 POINTS What is the equation of the line graphed?

99 POINTS What is the equation of the line graphed?-example-1
User Finn Bear
by
4.6k points

2 Answers

2 votes

Answer:

y = 3x - 2

Explanation:

Two of the coordinates are (2, 4) and (1, 1). The slope of these is 3/1, or 3. Plug this back in to get that the slope-intercept form is y = 3x - 2.

User Mike Bynum
by
6.2k points
6 votes

Answer:

y = 3x-2

Explanation:

We have the y intercept (where it crosses the y axis)

It crosses at y=-2

(0,-2) We need another point to find the slope.

Another point is (1,1)

The formula for slope is

m=(y2-y1)/ (x2-x1)

We have 2 points (0,-2) and (1,1)

= (1--2)/(1-0)

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

3/1

m=3

The slope is 3 and the y intercept is -2

We can use the slope intercept form of the equation

y= mx+b where m is the slope and b is the y intercept

y = 3x-2

User Brugner
by
5.1k points