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

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Question 470940: Find the x and y intercepts and graph the equation plotting the intercepts. -3x-4y=18.
Answer by jorel1380(3719)   (Show Source): You can put this solution on YOUR website!
Solved by pluggable solver: DESCRIBE a linear EQUATION: slope, intercepts, etc
Equation describes a sloping line. For any
equation ax+by+c = 0, slope is .
  • 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.
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