Q. Line p has an equation of y−3=41(x+1). Line q is perpendicular to line p and passes through (3,−6). What is the equation of line q?
Convert to Slope-Intercept Form: Convert the equation of line p to slope-intercept form to find its slope.The equation of line p is given as y−3=41(x+1). To convert it to slope-intercept form (y=mx+b), we need to distribute the 41 and move the constant term to the other side.y−3=41⋅x+41y=41⋅x+41+3y=41⋅x+413The slope (m) of line p is 41.
Find Perpendicular Slope: Determine the slope of line q which is perpendicular to line p. Since line q is perpendicular to line p, its slope will be the negative reciprocal of the slope of line p. The slope of line p is 41, so the negative reciprocal is −4 (since the negative reciprocal of 41 is −1/(41)=−4).
Use Point-Slope Form: Use the point-slope form to find the equation of line q. Line q passes through the point (3,−6) and has a slope of −4. 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. Plugging in the slope and the point into the point-slope form, we get: y−(−6)=−4(x−3)y+6=−4x+12
Convert to Slope-Intercept Form: Convert the equation from point-slope form to slope-intercept form.To convert the equation to slope-intercept form y=mx+b, we need to isolate y on one side of the equation.y+6=−4x+12y=−4x+12−6y=−4x+6The equation of line q in slope-intercept form is y=−4x+6.
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