Problem
The slope of the line below is - 8/7. Write a point-slope equation of the line using the coordinates of the labeled point. (4,4)
Solution
For this case the general equation for a line is given by:
y= mx+b
From the info given we know that m= -8/7 represent the slope. Now we can use the point x=4, y=4 in order to find the intercept on this way:
4= -8/7 (4) +b
And solving for b we got:
4 +40/7= b
b= 68/7
And then our equation wou