SOLUTION: find the x and y intercept and graph the equation plotting the intercept show all work -5x + 8y = -40

Algebra ->  Linear-equations -> SOLUTION: find the x and y intercept and graph the equation plotting the intercept show all work -5x + 8y = -40       Log On


   

Question 447506: find the x and y intercept and graph the equation plotting the intercept show all work -5x + 8y = -40
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 -5+x+%2B+8+y+=+-40 describes a sloping line. For any
equation ax+by+c = 0, slope is -a%2Fb+=+--5%2F8.
  • X intercept is found by setting y to 0: ax+by=c becomes ax=c. that means that x = c/a. -40/-5 = 8.
  • Y intercept is found by setting x to 0: the equation becomes by=c, and therefore y = c/b. Y intercept is -40/8 = -5.
  • Slope is --5/8 = 0.625.
  • Equation in slope-intercept form: y=0.625*x+-5.
graph%28+500%2C+500%2C+8-8%2C+8%2B8%2C+-5-8%2C+-5%2B8%2C+0.625%2Ax%2B-5+%29+
..