How do you write an equation of a line that has an x-intercept of 3 and a y-intercept of 4?
One quick way to do this is to use the fact that
You could also find the slope of the line containing the points
The x-intercept is the value of x when y=0. The y-intercept is the value when x=0.
The x-intercept of 3 corresponds to y=0, and the point on the line is (3,0).
The y-intercept of 4 corresponds to x=0, and the point on the line is (0,4).
Since we have two points on the line, we can find the slope using the formula
For the line running through the points
Now that we have the slope, we can write the equation for the line in point-slope form.