Find the equation of the line which passes through (-4, 3) and parallel to line y = 2x + 5.

Assessment: WAEC SSCE - Further Mathematics - 2016 (Objective) Subject: Further Mathematics

Question 1 Report

Find the equation of the line which passes through (-4, 3) and parallel to line y =  2x + 5.

Answer Details
To find the equation of a line that is parallel to a given line, we need to use the fact that parallel lines have the same slope. The given line has a slope of 2 (since it is in the form y = mx + b, where m is the slope and b is the y-intercept). Therefore, any line parallel to it must also have a slope of 2. We also know that the line passes through the point (-4, 3). We can use the point-slope form of the equation of a line to find the equation of the line: y - y1 = m(x - x1) where (x1, y1) is the point the line passes through, and m is the slope. Substituting in the values we know, we get: y - 3 = 2(x - (-4)) Simplifying: y - 3 = 2(x + 4) y - 3 = 2x + 8 y = 2x + 11 Therefore, the equation of the line which passes through (-4, 3) and parallel to line y = 2x + 5 is y = 2x + 11. So the answer is: y = 2x + 11.
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