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Mathematics 15 Online
OpenStudy (bossimbacon):

What is the x-intercept of the line with the equation -2x+1/2y=18 ( ___ , 0 )

OpenStudy (bossimbacon):

@aaronq

OpenStudy (mathstudent55):

Do you know how to solve the equation for y?

OpenStudy (bossimbacon):

not rally

OpenStudy (anonymous):

-9 is the answer

OpenStudy (mathstudent55):

No forget that. That is for the y-intercept. To find the x-intercept, you already have a hint in your answer.

OpenStudy (mathstudent55):

The answer shows that the point has to be (---, 0). The x-intercept has a y-coordinate of zero.

OpenStudy (mathstudent55):

That means you take the equation and let y be zero, and solve for x. The value of x is the x-coordinate of the x-intercept.

OpenStudy (anonymous):

plug in 0 for y and you get -2x=18 then you divide by -2 to get x by itself.

OpenStudy (bossimbacon):

so the answer is -9? @mathstudent55

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