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Graphs of linear equations and functions: advanc\newlineWhich of the following is an equation of the line \newlineA graphed in the \newlinexy plane that passes through the point \newline(1,3.5)(-1, 3.5) and is perpendicular to the line \newlineB whose equation is \newlinex+4.5=0x + 4.5 = 0 ?\newlineChoose 11 answer:\newline(A) \newlinex=1x = -1\newline(B) \newlinex=3.5x = 3.5\newline(C) \newliney=3.5y = 3.5\newline(D) \newliney=4.5y = 4.5

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Q. Graphs of linear equations and functions: advanc\newlineWhich of the following is an equation of the line \newlineA graphed in the \newlinexy plane that passes through the point \newline(1,3.5)(-1, 3.5) and is perpendicular to the line \newlineB whose equation is \newlinex+4.5=0x + 4.5 = 0 ?\newlineChoose 11 answer:\newline(A) \newlinex=1x = -1\newline(B) \newlinex=3.5x = 3.5\newline(C) \newliney=3.5y = 3.5\newline(D) \newliney=4.5y = 4.5
  1. Vertical Line Equation: Line B: x+4.5=0x + 4.5 = 0 Rewrite in slope-intercept form. x=4.5x = -4.5 Vertical line, slope is undefined.
  2. Perpendicular Line Slope: Line AA is perpendicular to line BB. Perpendicular to vertical line is horizontal line. Horizontal line has slope 00.
  3. Horizontal Line Equation: Line A passes through (1,3.5)(-1, 3.5).
    Horizontal line through y=3.5y = 3.5.
    Equation: y=3.5y = 3.5

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