chancemorris123
  • chancemorris123
The equation of a line is y = 2x + 3. What is the equation of the line that is parallel to the first line and passes through (2, –1)? A. 4x – 2y = –6 B. y = 2x – 5 C. y = 3x + 4 D. 2x + y = –1
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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katieb
  • katieb
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mathstudent55
  • mathstudent55
What do you know about the slopes of parallel lines?
chancemorris123
  • chancemorris123
anything els? cuz i dont know much
anonymous
  • anonymous
@mathstudent55 I was just about to post the answer to help him. Oh well, adios!

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mathstudent55
  • mathstudent55
Parallel lines have the same slope.
chancemorris123
  • chancemorris123
yea post it
mathstudent55
  • mathstudent55
The given line has equation: y = 2x + 3 That means the slope is 2. The parallel line also has slope 2.
chancemorris123
  • chancemorris123
so d? cuz that has 2x
chancemorris123
  • chancemorris123
i know its not c
anonymous
  • anonymous
A and B are parallel to the given equation as @mathstudent55 mentioned in the previous post
mathstudent55
  • mathstudent55
The parallel line has equation y = 2x + b Now we need to find b. We use the given point for x and y and solve for b. -1 = 2(2) + b -1 = 4 + b -5 = b Since b = -5, the equation of the parallel line is y = 2x - 5
mathstudent55
  • mathstudent55
Which choice is y = 2x - 5?
chancemorris123
  • chancemorris123
oh so we know its not c so that is out
chancemorris123
  • chancemorris123
b its b
chancemorris123
  • chancemorris123
i know it
mathstudent55
  • mathstudent55
Correct.
chancemorris123
  • chancemorris123
your the man now i can finally sleep i was up all day doing hw
chancemorris123
  • chancemorris123
u just gave a child the ability to sleep
chancemorris123
  • chancemorris123
god bless
mathstudent55
  • mathstudent55
thanks & you're welcome

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