Posted by erika on Monday, October 26, 2009 at 9:40pm.
how do you represent the xinterept of the graph y=2/3x+6?

algebra  Reiny, Monday, October 26, 2009 at 10:21pm
for the xinercept let y = 0
0 = (2/3)x + 6
0 = 2x + 18
x = 9
if you want to rearrange the equation so that the xintercept can be read, like the b in y=mx + b is the yintercept, solve the equation for x
y = (2/3)x + 6
3y = 2x + 18
2x = 3y  18
x = (3/2)y  9
notice that the constant at the end is the xintercept, just like the b in y = mx +b was the yintercept,
BUT, notice that the number in front of y is NOT the slope, instead it is the reciprocal of the slope.
Answer This Question
Related Questions
 algebra 1  how do you know when the line crosses the y axis while doing y ...
 Algebra 2  Write an equation in slopeinterept for, for the lnie that satisfies...
 algebra  1. Explain the concept of modeling. How does a model describe known ...
 Algebra  Owners of a recreation area are filling a small pond with water. They...
 Algebra I get 1 out of two parts  Owners of a recreation area are filling a ...
 physics  Graph #1 is a parabola. Graph #2 is a hyperbola. a. Only graph 1 may ...
 algebra  Which graph best represent following expressionx1>2
 algebra  What are the pairs of numbers on a graph which represent the equation ...
 MATH HELP  Sally has only nickels and dimes in her money box. She knows that ...
 Physics  The pressure and volume of a gas are changed along a path ABCA in the ...
More Related Questions