SOLUTION: Please help solve the following problem. Solve each system by graphing. 1. 2x - y = 4 2x - y = 3

Algebra ->  Linear-equations -> SOLUTION: Please help solve the following problem. Solve each system by graphing. 1. 2x - y = 4 2x - y = 3      Log On


   

Question 39067: Please help solve the following problem. Solve each system by graphing.
1. 2x - y = 4
2x - y = 3
Answer by Nate(3500) About Me  (Show Source):
You can put this solution on YOUR website!
1. 2x - y = 4
2x - y = 3
Solved by pluggable solver: DESCRIBE a linear EQUATION: slope, intercepts, etc
Equation 2+x+%2B+-1+y+=+4 describes a sloping line. For any
equation ax+by+c = 0, slope is -a%2Fb+=+-2%2F-1.
  • X intercept is found by setting y to 0: ax+by=c becomes ax=c. that means that x = c/a. 4/2 = 2.
  • Y intercept is found by setting x to 0: the equation becomes by=c, and therefore y = c/b. Y intercept is 4/-1 = -4.
  • Slope is -2/-1 = 2.
  • Equation in slope-intercept form: y=2*x+-4.
graph%28+500%2C+500%2C+2-8%2C+2%2B8%2C+-4-8%2C+-4%2B8%2C+2%2Ax%2B-4+%29+

Solved by pluggable solver: DESCRIBE a linear EQUATION: slope, intercepts, etc
Equation 2+x+%2B+-1+y+=+3 describes a sloping line. For any
equation ax+by+c = 0, slope is -a%2Fb+=+-2%2F-1.
  • X intercept is found by setting y to 0: ax+by=c becomes ax=c. that means that x = c/a. 3/2 = 1.5.
  • Y intercept is found by setting x to 0: the equation becomes by=c, and therefore y = c/b. Y intercept is 3/-1 = -3.
  • Slope is -2/-1 = 2.
  • Equation in slope-intercept form: y=2*x+-3.
graph%28+500%2C+500%2C+1.5-8%2C+1.5%2B8%2C+-3-8%2C+-3%2B8%2C+2%2Ax%2B-3+%29+


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