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OpenStudy (anonymous):
OpenStudy (mathstudent55):
Let x = 0, solve for y.
Let y = 0, solve for x.
OpenStudy (anonymous):
Could you explain what you mean by that?
OpenStudy (mathstudent55):
The equation is:
10x + 2y = 20
If you let x = 0, you have
10 * 0 + 2y = 20
Can you solve this equation for y?
OpenStudy (anonymous):
So it would be 10?
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OpenStudy (mathstudent55):
Yes, so y = 10. That is the y intercept.
OpenStudy (mathstudent55):
Now let y = 0.
10x + 2y = 20
10x + 2 * 0 = 20
Solve for x. That is the x-intercept.
OpenStudy (anonymous):
ok so then x= 2
OpenStudy (mathstudent55):
Correct.
OpenStudy (anonymous):
So now that we have the intercepts is the answer A or B
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OpenStudy (mathstudent55):
We got these answers above:
1. Yes, so y = 10. That is the y intercept.
2. Solve for x. That is the x-intercept. ok so then x= 2
You should be able to tell which answer to choose now.
OpenStudy (anonymous):
A and B are the same
OpenStudy (mathstudent55):
A: x-intercept is 2; y-intercept is 10
B: x-intercept is 10; y-intercept is 2
They are not the same. One is the answer, and one is not.
Are these two statments the same?
I have $10, and you have $2.
I have $2, and you have $10.