SOLUTION: Find the equation of the line containing the following points (7,-11)(3,5). Make sure the equation is in slope-intercept form. thanks

Algebra ->  Linear-equations -> SOLUTION: Find the equation of the line containing the following points (7,-11)(3,5). Make sure the equation is in slope-intercept form. thanks       Log On


   

Question 544770: Find the equation of the line containing the following points (7,-11)(3,5). Make sure the equation is in slope-intercept form.
thanks
Answer by ankor@dixie-net.com(22740) About Me  (Show Source):
You can put this solution on YOUR website!
Find the equation of the line containing the following points (7,-11)(3,5).
Assign the given values as follows
x1=7, y1=-11
x2=3, y2=5
:
Use slope formula: m = %28%28y2-y1%29%29%2F%28%28x2-x1%29%29
so we have
m = %28%285-%28-11%29%29%29%2F%28%283-7%29%29 = %28%285%2B11%29%29%2F%28%28-4%29%29 = -16%2F4 = -4 is the slope
:
Use the point/slope formula y - y1 = m(x - x1)
y - (-11) = -4(x - 7)
y + 11 = -4x + 28
y = -4x + 28 - 11
y = -4x + 17, is the slope/intercept equation