How do you write an equation of a line going through (-1,2), (3,-4)?
To find a linear equation for the line going through these two points we can use the point-slope formula.
However, first we need to determine the slope of the line.
The slope can be found by using the formula:
Substituting the two points given in the problem we can solve for
Now that we have the slope we can use the slope-point formula to write the equation for the line.
The point-slope formula states:
Substituting the slope of
If we want this in the slope-intercept for we can solve for