Q. The equation for line c can be written as y=−76x−1. Line d is parallel to line c and passes through (10,−9). What is the equation of line d?
Understand Relationship of Slopes: Understand the relationship between the slopes of parallel lines. Parallel lines have the same slope.
Identify Slope of Line c: Identify the slope of line c from its equation.The equation of line c is given as y=−76x−1.The slope (m) of line c is the coefficient of x, which is −76.
Determine Slope of Line d: Since line d is parallel to line c, determine the slope of line d. The slope of line d is the same as the slope of line c because parallel lines have equal slopes. Therefore, the slope of line d is also −76.
Use Point-Slope Form: Use the point-slope form to find the equation of line d. The point-slope form of a line is y−y1=m(x−x1), where m is the slope and (x1,y1) is a point on the line. We know the slope (m) is −76 and the point (x1,y1) is (10,−9). Plug these values into the point-slope form to get the equation of line d. y−(−9)=−76(x−10)
Simplify Equation to Slope-Intercept Form: Simplify the equation of line d to slope-intercept form.y+9=−76(x−10)y+9=−76x+760y=−76x+760−9Convert 9 to a fraction with a denominator of 7 to combine like terms.y=−76x+760−763y=−76x−73
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