SOLUTION: y=1/2x-4 I need 5 solutions for graphing I just do not understand how to do this.

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Question 251596: y=1/2x-4 I need 5 solutions for graphing I just do not understand how to do this.
Answer by richwmiller(17219) About Me  (Show Source):
You can put this solution on YOUR website!
For graphing you only need two ordered pairs because it is a straight line.
However your teacher may have told you to plot five points.
The easiest points to calculate are the intercepts when x=0 and y=0
So plug in 0 for x and calculate y
and plug in 0 for y and calculate x
Just pick any value you want for x and calculate y
Since you will be multiplying x by 1/2 it would make it easy to choose even numbers for x.
x=2 brings y=-3
so now you have three points
pick an x and calculate y
pick another x and calculate y
Solved by pluggable solver: DESCRIBE a linear EQUATION: slope, intercepts, etc
Equation 0.5+x+%2B+-1+y+=+4 describes a sloping line. For any
equation ax+by+c = 0, slope is -a%2Fb+=+-0.5%2F-1.
  • X intercept is found by setting y to 0: ax+by=c becomes ax=c. that means that x = c/a. 4/0.5 = 8.
  • 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 -0.5/-1 = 0.5.
  • Equation in slope-intercept form: y=0.5*x+-4.
graph%28+500%2C+500%2C+8-8%2C+8%2B8%2C+-4-8%2C+-4%2B8%2C+0.5%2Ax%2B-4+%29+