+0  
 
0
20
1
avatar

Complete the point-slope equation of the line through (-5,7) and (-4,0)

 

solve this: y -- 7= ___

 

 

 

coolplease help

Guest May 15, 2018
edited by Guest  May 15, 2018
Sort: 

1+0 Answers

 #1
avatar+660 
+1

Point-Slope form is:

 

y - b = m(x - a)

 

Where m is the slope, and (a,b) is a point the line passes through. 

 

Since we are already given the points, we can plug them in to update our equation:

 

y - 7 = m(x - (-5)) 

 

Simplyfied:

 

y - 7 = m(x + 5) 

 

We now need to solve for the slope. 

 

The slope is rise over run. 

 

Rise is the first y value minus the second y value. 

 

Run is the first x value minus the second x value

 

Rise is 7 - 0 = 7 

Run is -5 - ( -4 ) = -1 

 

The slope is -7. 

 

The equation in point-slope form is y - 7 = -7(x + 5) 

GYanggg  May 15, 2018

8 Online Users

avatar
New Privacy Policy (May 2018)
We use cookies to personalise content and ads, to provide social media features and to analyse our traffic. We also share information about your use of our site with our social media, advertising and analytics partners.  Privacy Policy