Q. Put the following equation of a line into slope-intercept form, simplifying all fractions.3x+3y=21Answer:
Isolate y-term: To convert the equation into slope-intercept form, which is y=mx+b, we need to solve for y. Let's start by isolating the y-term on one side of the equation.3x+3y=21Subtract 3x from both sides to get the y-term by itself.3y=−3x+21
Divide by coefficient: Now, we need to divide every term by the coefficient of y, which is 3, to solve for y.33y=3−3x+321This simplifies to:y=−x+7
Convert to slope-intercept form: We have now put the equation into slope-intercept form. The slopem is −1, and the y-interceptb is 7.
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