document.write( "Question 37255: What is the domain of the function f(x)=3x-3 when the range is R:{3,-7,-9}?
\n" ); document.write( " \n" ); document.write( "
Algebra.Com's Answer #22936 by Nate(3500)\"\" \"About 
You can put this solution on YOUR website!
What is the domain of the function f(x)=3x-3 when the range is R:{3,-7,-9}?
\n" ); document.write( "R:3
\n" ); document.write( "f(3)=(3)3-3=6
\n" ); document.write( "R:-7
\n" ); document.write( "f(-7)=3(-7)-3=-24
\n" ); document.write( "R:-9
\n" ); document.write( "f(-9)=3(-9)-3=-30
\n" ); document.write( "\n" ); document.write( "\n" ); document.write( " \n" ); document.write( "\n" ); document.write( "
Solved by pluggable solver: DESCRIBE a linear EQUATION: slope, intercepts, etc
Equation \"-3+x+%2B+1+y+=+-3\" describes a sloping line. For any
\n" ); document.write( " equation ax+by+c = 0, slope is \"-a%2Fb+=+--3%2F1\".
  • X intercept is found by setting y to 0: ax+by=c becomes ax=c. that means that x = c/a. -3/-3 = 1.
  • Y intercept is found by setting x to 0: the equation becomes by=c, and therefore y = c/b. Y intercept is -3/1 = -3.
  • Slope is --3/1 = 3.
  • Equation in slope-intercept form: y=3*x+-3.
\"graph%28+500%2C+500%2C+1-8%2C+1%2B8%2C+-3-8%2C+-3%2B8%2C+3%2Ax%2B-3+%29+\"\n" ); document.write( "
\n" ); document.write( " \n" ); document.write( "
\n" );