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complete the equation of the line through (1,4)(1,4) and (2,2)(2,2)

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Q. complete the equation of the line through (1,4)(1,4) and (2,2)(2,2)
  1. Calculate Slope: To find the equation of a line, we need to determine the slope mm of the line using the formula m=y2y1x2x1m = \frac{y_2 - y_1}{x_2 - x_1}, where (x1,y1)(x_1, y_1) and (x2,y2)(x_2, y_2) are the coordinates of the two points the line passes through.\newlineUsing the points (1,4)(1,4) and (2,2)(2,2), we calculate the slope as follows:\newlinem=2421m = \frac{2 - 4}{2 - 1}\newlinem=21m = \frac{-2}{1}\newlinem=2m = -2
  2. Use Point-Slope Form: Now that we have the slope, we can use the point-slope form of the equation of a line, which is yy1=m(xx1)y - y_1 = m(x - x_1), where mm is the slope and (x1,y1)(x_1, y_1) is a point on the line.\newlineUsing the slope m=2m = -2 and point (1,4)(1,4), we plug these values into the point-slope form:\newliney4=2(x1)y - 4 = -2(x - 1)
  3. Simplify Equation: Next, we simplify the equation by distributing the slope 2-2 through the parentheses:\newliney4=2x+2y - 4 = -2x + 2
  4. Convert to Slope-Intercept Form: To write the equation in slope-intercept form y=mx+by = mx + b, we add 44 to both sides of the equation to solve for yy:y=2x+2+4y = -2x + 2 + 4y=2x+6y = -2x + 6

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