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Line $a$ is parallel to line $y=2x+4$ and passes through the point $(2,5)$. What is the y-intercept of line $a$?

 Mar 28, 2020

Best Answer 

 #1
avatar+4568 
+1

Since line A is parallel to line y=2x+4, line A must have the same slope which is two(2).

 

y=2x+b

 

Plug in (2,5) for x and y respectively

 

5=2(2)+b, 5=4+b, b=1

 

Thus, the y-intercept of line A is one(1).

 Mar 28, 2020
 #1
avatar+4568 
+1
Best Answer

Since line A is parallel to line y=2x+4, line A must have the same slope which is two(2).

 

y=2x+b

 

Plug in (2,5) for x and y respectively

 

5=2(2)+b, 5=4+b, b=1

 

Thus, the y-intercept of line A is one(1).

tertre Mar 28, 2020
 #2
avatar+111330 
+1

Thanks, tertre  !!!!

 

 

cool cool cool

CPhill  Mar 28, 2020

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