+0  
 
+2
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3
avatar+40 

At what point does the line containing the points (1,7) and (3,11) intersect the y-axis? Express your answer as an ordered pair.

 Apr 20, 2021
 #1
avatar+118505 
+4

Slope =  (11 - 7)  / ( 3 -1)  =   4 / 2  =  2

 

Equation of line

 

y = 2(x - 1)  +  7

 

y  = 2x  - 2  +  7

 

y  = 2x  +  5

 

The line intersects  the  x axis  where y = 0 

 

So

 

0 = 2x + 5

 

-5  =  2x

 

-5/2  =  x    

 

 

cool cool cool

 Apr 20, 2021
 #2
avatar+40 
+1

It says it is wrong tho.

Chocolatehere  Apr 21, 2021
 #3
avatar+32112 
+3

Chris has given the point tht intersects the x-axis.  To find the point that  intersects the y-axis, set x = 0 and calculate the corresponding value of y from the equation y = 2x + 5.

 Apr 21, 2021

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