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What is the slope of the line 9x + 3y = 81?

0 votes

i need the steps on how you do this problem.

slope-of-a-line
slope-intercept-form

asked Mar 8, 2014 in ALGEBRA 2 by angel12 Scholar

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1 Answer

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Slope intercept form of a line y = mx +b

Here m is slope and b is intercept of y.

Given line 9x +3y = 81

Subtract 9x from each side.

3y = -9x +81

Divide to each side by 3.

y = -3x +27

Now it is in Slope intercept form.

m = -3.

answered Mar 8, 2014 by david Expert

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