40.8k views
0 votes
SO I HAVE A QUESTION IS THE EQUATION Y-Y1=M(X-X1) AND Y=MX+B SAME GIVE EXAMPLES PLSSSSSSSSSS

2 Answers

4 votes

Answer:

Hey there!

Both of these can be used to write the equation of the line. However, for the Y-Y1=M(X-X1) equation, we must know one point on the line (X1, Y1) and the slope of the line, while in the Y=MX+B equation, we need to know the slope and the x or y intercept.

For example, we can convert from Y-Y1=M(X-X1) to Y=MX+B

For example, say the point is (2, 3) and the slope is 1

Then, we have Y-3=1(x-2)

This simplifies to Y-3=1x-2

And to Y=X+1

So it is very possible to change from one form to another.

Let me know if you need more help.

User ChessMax
by
8.6k points
2 votes

Both of these are ways to express linear equations.


y - y_1 = m(x - x_1) is the equation for a line with slope m which contains the point
(x_1,y_1). This is called point-slope form.


y = mx + b is the equation for a line with slope m and y-intercept b. That is, it contains the point (0, b). This is called slope-intercept form.

Both of these are perfectly valid ways of writing lines, though sometimes one will be easier to use than the other.

User LSchueler
by
8.3k points
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.