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Homework Help Forum: Algebra ll
Posted by Carol on Wednesday, September 30, 2009 at 11:49pm.
Write an equation in slope-intercept form for the line that has a slope of -4 and passes through (1,2)
Choices: y= -2x+4
y= -4x+6
y= -4x+9
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- Algebra ll - jim, Thursday, October 1, 2009 at 6:36am
Slope-intercept form y=mx +c where m is the slope.
You are told that the slope is -4, so the equation muct be like
y = -4x + c
That rules out one of your choices.
Now, of the other two, the equation must be true for the point (1,2).
So which of these is true?
2 = -4 * 1 + 6
2 = -4 * 1 + 9
and then you have your answer!
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- Algebra ll - charles, Thursday, October 1, 2009 at 7:06pm
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how do yu graph linear equations
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