Q. What is the equation in standard form of the line that passes through the point (6,−1) and is parallel to the line represented by 8x+3y=15 ?
Find Slope of Parallel Line: First, we need to find the slope of the line that is parallel to the given line. To do this, we will convert the equation 8x+3y=15 into slope-intercept form (y=mx+b) to identify the slope.Rearrange the equation to solve for y:3y=−8x+15y=(−8/3)x+5The slope (m) of the line is −8/3.
Use Point-Slope Form: Since parallel lines have the same slope, the slope of the line we are looking for is also −38. Now we will use the point-slope form of the equation of a line, which is y−y1=m(x−x1), where m is the slope and (x1,y1) is the point the line passes through.Substitute the slope −38 and the point (6,−1) into the point-slope form:y−(−1)=(−38)(x−6)
Simplify Equation: Simplify the equation by distributing the slope on the right side and moving −1 to the other side:y+1=(−38)x+(38)⋅6y+1=(−38)x+16
Convert to Standard Form: Now we need to convert this equation into standard form, which is Ax+By=C, where A, B, and C are integers. To do this, we will first eliminate the fraction by multiplying every term by the denominator, which is 3: 3(y+1)=3(−38)x+3×16
Eliminate Fractions: Perform the multiplication: 3y+3=−8x+48
Rearrange Terms: Next, we will move all terms involving variables to one side of the equation and the constant term to the other side to get the standard form: 8x+3y=48−3
Find Constant Term: Subtract 3 from 48 to find the constant term:8x+3y=45This is the equation of the line in standard form.
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