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Parallel/Perpendicular Through Point
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What is an equation of the line that passes through the point (4,0) and is perpendicular to the line 4x3y=15 ?
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Answer

The equation of the line that passes through the point (4,0) and is perpendicular to the line 4x3y=15 is y=34x+3.

Steps

Step 1 :The equation of a line in the slope-intercept form is given by y=mx+c, where m is the slope of the line and c is the y-intercept.

Step 2 :The slope of a line given by the equation ax+by=c is a/b. Therefore, the slope of the line 4x3y=15 is 4/3.

Step 3 :The slope of a line perpendicular to a given line is the negative reciprocal of the slope of the given line. Therefore, the slope of the line we are looking for, which is perpendicular to the line 4x3y=15, is 3/4.

Step 4 :We also know that this line passes through the point (4,0). We can substitute these values into the equation y=mx+c to find the y-intercept c.

Step 5 :m=0.75

Step 6 :c=3.0

Step 7 :Now that we have the slope and the y-intercept, we can write the equation of the line in the slope-intercept form.

Step 8 :The equation of the line that passes through the point (4,0) and is perpendicular to the line 4x3y=15 is y=34x+3.

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