+0  
 
0
54
2
avatar+2352 

Find the number of square units in the area of the triangle.

tertre  Mar 16, 2018
Sort: 

2+0 Answers

 #1
avatar+85821 
+1

The slope of the line is   [6 - 2 ]  /  [-2 + 6 ]  = 4 / 4  = 1

 

The equation of the line passing through these two points is

 

y  = 1 ( x + 2)  +  6

y = x  + 8 

 

To find the height of the triangle....find where the line intercepts the y axis....let x  = 0

 

y  =  0 +  8   =   8

 

 

To find the base of the triangle, let y  = 0

 

0  = x +  8

-8  = x         take the absolute value of this  =  8

 

So.....the area of the triangle is   (1/2) base * height  =  (1/2) * 8 * 8  =  

 

(1/2 * 64   =     

 

32 units^2

 

 

cool cool cool

CPhill  Mar 16, 2018
edited by CPhill  Mar 16, 2018
 #2
avatar+2352 
+1

Thanks so much, CPhill!

tertre  Mar 16, 2018

32 Online Users

avatar
avatar
avatar
avatar
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.  See details