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Which of the following equations represents a line that passes through the points 
(6,2) and 
(-6,-14) ?
I. 
y-1=(4)/(3)(x-6)
II. 
4x-3y=21
Neither
I only
II only
I and II

Which of the following equations represents a line that passes through the points (6,2) (6,2) and (6,14) (-6,-14) ?\newlineI. y1=43(x6) y-1=\frac{4}{3}(x-6) \newlineII. 4x3y=21 4 x-3 y=21 \newlineNeither\newlineI only\newlineII only\newlineI and II

Full solution

Q. Which of the following equations represents a line that passes through the points (6,2) (6,2) and (6,14) (-6,-14) ?\newlineI. y1=43(x6) y-1=\frac{4}{3}(x-6) \newlineII. 4x3y=21 4 x-3 y=21 \newlineNeither\newlineI only\newlineII only\newlineI and II
  1. Calculate slope: Calculate the slope of the line passing through the points (6,2)(6,2) and (6,14)(-6,-14). The slope mm is given by the formula m=y2y1x2x1m = \frac{y_2 - y_1}{x_2 - x_1}. Here, (x1,y1)=(6,2)(x_1, y_1) = (6, 2) and (x2,y2)=(6,14)(x_2, y_2) = (-6, -14). m=14266m = \frac{-14 - 2}{-6 - 6} m=1612m = \frac{-16}{-12} m=43m = \frac{4}{3}
  2. Check equation slope: Check if equation I, y1=43(x6)y - 1 = \frac{4}{3}(x - 6), has the correct slope.\newlineThe slope-intercept form of a line is y=mx+by = mx + b.\newlineIn equation I, the slope is 43\frac{4}{3}, which matches the slope we calculated in Step 11.
  3. Verify equation point: Verify if equation I passes through the point (6,2)(6,2).\newlineSubstitute x=6x = 6 and y=2y = 2 into the equation y1=43(x6)y - 1 = \frac{4}{3}(x - 6).\newline21=43(66)2 - 1 = \frac{4}{3}(6 - 6)\newline1=43(0)1 = \frac{4}{3}(0)\newline1=01 = 0\newlineThis is incorrect; therefore, equation I does not pass through the point (6,2)(6,2).

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