118k views
2 votes
Write an equation in slope-intercept form.
(2,1) (0,-3)

User Artsin
by
7.1k points

1 Answer

2 votes

Answer: y = 2x - 3.

Explanation:

To write an equation in slope-intercept form, we need to use the given points (2,1) and (0,-3) to find the slope and y-intercept.

The slope, denoted by the letter 'm', represents the rate of change of the line. It can be found using the formula:

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

Let's substitute the coordinates (2,1) and (0,-3) into the formula:

m = (-3 - 1) / (0 - 2)

m = -4 / -2

m = 2

The y-intercept, denoted by the letter 'b', is the y-coordinate where the line intersects the y-axis. To find the y-intercept, we can substitute one of the given points into the slope-intercept form equation:

y = mx + b

Using the point (2,1):

1 = 2(2) + b

1 = 4 + b

b = 1 - 4

b = -3

Now that we have the slope (m = 2) and the y-intercept (b = -3), we can write the equation in slope-intercept form:

y = 2x - 3

Therefore, the equation in slope-intercept form for the given points (2,1) and (0,-3) is y = 2x - 3.

PLS LET ME KNOW IF THIS HELPED U AT ALL!!!!! IF NOT I WILL JUST REDO IT TILL I GET IT RIGHT FOR U :)

User Mugen
by
7.6k points