SOLUTION: y=2x-4 y=2x+4

Question 222591: y=2x-4
y=2x+4
Answer by drj(1380) (Show Source): You can put this solution on YOUR website!
y=2x-4 Equation A
y=2x+4 Equation B

Subtract Equation A from Equation B
y-y=2x-2x+4-(-4)

0=8 ...Not a true statement. We also note that the lines are parallel since they have the same slope m=2 since the above equations are in slope-intercept form y=mx+b where m is the slope and b is the y-intercept when x=0 or at point(0,b).

ANSWER: There is no solution since the two lines cannot intersect or are in parallel.

I hope the above steps were helpful.

For FREE Step-By-Step videos in Introduction to Algebra, please visit http://www.FreedomUniversity.TV/courses/IntroAlgebra and for Trigonometry visit http://www.FreedomUniversity.TV/courses/Trigonometry.

Good luck in your studies!

Respectfully,
Dr J
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