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Find the equation, in standard form, of the line that passes through (0,5) and has slope -3.

 

also, this one even though it's similar, I still had trouble: 

Find the equation in standard form of the line that passes through (2, 7) and has slope 1/4.

 

Thank y'all in advance! 

 

coolcoolcool (me keeping cphill's long lasting legacy and signature sign off while he's gone!)

 Jun 25, 2020
 #1
avatar+24342 
+2

Starting with y = mx + b form

 

y = -3x + b     sub in the point to calc 'b'

5 = -3(0) + b     b = 5

y = -3x+5

y + 3x = 5    in standard form  

 
 Jun 25, 2020
 #2
avatar+24342 
+1

y = 1/4x + b

7 = 1/4 (2) + b      b = 6 1/2

y = 1/4 x + 6 1/2

y - 1/4 x = 6 1/2

 
 Jun 25, 2020
 #3
avatar+111 
0

thank you electricpavlov!!

 
andrewstanells  Jun 25, 2020
 #4
avatar+24342 
0

You're welcome!   I hope it is clearer to you now ......cheeky

 
ElectricPavlov  Jun 25, 2020

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