Which of the following equations represents a line that passes through the points (0,5) and (6,−3) ?I. 4x+3y=12II. y=−34x+7NeitherI onlyII onlyI and II
Q. Which of the following equations represents a line that passes through the points (0,5) and (6,−3) ?I. 4x+3y=12II. y=−34x+7NeitherI onlyII onlyI and II
Calculate Slope: Find the slope of the line passing through the points (0,5) and (6,−3). The slope m is calculated using the formula m=x2−x1y2−y1. Here, (x1,y1)=(0,5) and (x2,y2)=(6,−3). m=6−0−3−5=6−8=3−4.
Write Point-Slope Equation: Use the slope and one of the points to write the equation of the line in point-slope form.We can use the point (0,5) and the slope −34.The point-slope form is y−y1=m(x−x1).Substituting the values, we get y−5=(−34)(x−0).
Convert to Slope-Intercept Form: Convert the point-slope form to slope-intercept formy=mx+b.y−5=(−34)x+0Add 5 to both sides to solve for y.y=(−34)x+5.
Check Equation I: Check if equation I 4x+3y=12 is the same line.To check, we need to convert this equation to slope-intercept form.3y=−4x+12y=(−34)x+4.This is not the same as y=(−34)x+5, so equation I does not represent the line passing through the points (0,5) and (6,−3).
Check Equation II: Check if equation II y=−(34)x+7 is the same line.Compare this equation with the one we derived y=(−34)x+5.The slopes are the same, but the y-intercepts are different 7 vs. 5.Therefore, equation II also does not represent the line passing through the points (0,5) and (6,−3).
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