SOLUTION: Translate the sum of four times a number and the product of the number and seven into a variable expression and then simplify. *How is the problem worked out?

Algebra ->  Polynomials-and-rational-expressions -> SOLUTION: Translate the sum of four times a number and the product of the number and seven into a variable expression and then simplify. *How is the problem worked out?      Log On


   

Question 409176: Translate the sum of four times a number and the product of the number and seven into a variable expression and then simplify.
*How is the problem worked out?
Answer by Jeef Gorrdon(26) About Me  (Show Source):
You can put this solution on YOUR website!
Solved by pluggable solver: DESCRIBE a linear EQUATION: slope, intercepts, etc
Equation 4+x+%2B+2+y+=+0 describes a sloping line. For any
equation ax+by+c = 0, slope is -a%2Fb+=+-4%2F2.
  • X intercept is found by setting y to 0: ax+by=c becomes ax=c. that means that x = c/a. 0/4 = 0.
  • Y intercept is found by setting x to 0: the equation becomes by=c, and therefore y = c/b. Y intercept is 0/2 = 0.
  • Slope is -4/2 = -2.
  • Equation in slope-intercept form: y=-2*x+0.
graph%28+500%2C+500%2C+0-8%2C+0%2B8%2C+0-8%2C+0%2B8%2C+-2%2Ax%2B0+%29+