1) Write down the equation of a perpendicular line to y = 2x + 3 a) y = 2x + 1 b) y = -x/2 + 1 c) y = 2x + 5 d) y = x + 1 2) State the gradient, m and the y - intercept , c of the equation x - 2y +5 =0 a) m = 2; c = -5 b) m = 1; c = -5 c) m = -2; c = -5 d) m = 0.5; c = 5 3) Calculate the gradient of the line that is perpendicular to the line y = - 0.4x + 3 a) 2.5 b) 5 c) 2 d) 0.4 4) State the equation of the line that is parallel to the line y = 2x + 7 at a point (3,8) a) y = 2x + 8 b) y = 2x + 2 c) y = 2x - 8 d) y = x + 8 5) Write down the equation of the line perpendicular to y = x/2 - 4 which passes through (0, 7) a) y = - 2x + 7 b) y = - 2x - 7 c) y = x + 9 d) y = 2x + 7 6) Find the equation of the line that is parallel to the line y = x + 3 at a point (3,8) a) y = x + 1 b) y = x + 5 c) y = 2x + 5 d) 2y = x + 5 7) Determine the equation of the line that is perpendicular to the line y = - x + 1 at a point (0,8) a) y = x + 5 b) 3y = x + 7 c) 3y = 2x + 1 d) y = 2x + 1 8) Find the slope of the line perpendicular to 15x+5y=20 . a) 3 b) 5 c) -3 d) -5 9) Find the equation of the line passing through (6,−1) and parallel to y=1/2x+2 a) y= x−4 b) y=1/2x−4 c) y=3/2x+ 4 d) y=12x+ 14 10) Find the equation of the line passing through (−1,−5) and perpendicular to y=−1/4x+2 . a) 2y=4x−3 b) y=4x+1 c) y= x−1 d) y=4x−1

COORDINATES: Use gradients of parallel and perpendicular lines to find the equations.

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