SOLUTION: Find the x and y intercepts and graph the equation plotting the intercepts. -3x-4y=18.

Algebra ->  Coordinate-system -> SOLUTION: Find the x and y intercepts and graph the equation plotting the intercepts. -3x-4y=18.       Log On


   

Question 470940: Find the x and y intercepts and graph the equation plotting the intercepts. -3x-4y=18.
Answer by jorel1380(3719) About Me  (Show Source):
You can put this solution on YOUR website!
Solved by pluggable solver: DESCRIBE a linear EQUATION: slope, intercepts, etc
Equation -3+x+%2B+-4+y+=+18 describes a sloping line. For any
equation ax+by+c = 0, slope is -a%2Fb+=+--3%2F-4.
  • X intercept is found by setting y to 0: ax+by=c becomes ax=c. that means that x = c/a. 18/-3 = -6.
  • Y intercept is found by setting x to 0: the equation becomes by=c, and therefore y = c/b. Y intercept is 18/-4 = -4.5.
  • Slope is --3/-4 = -0.75.
  • Equation in slope-intercept form: y=-0.75*x+-4.5.
graph%28+500%2C+500%2C+-6-8%2C+-6%2B8%2C+-4.5-8%2C+-4.5%2B8%2C+-0.75%2Ax%2B-4.5+%29+