Find the line through the point (1, -3) that is PARALLEL to the line y = 1/4 x - 2. Parallel line implies the SAME slope, i.e. m = 1/4 y - y1 = m(x - x1) <-- point slope formula for a line y - -3 = 1/4 (x - 1) <-- plug in the point and the slope y + 3 = 1/4 x - 1/4 <-- minus a minus = positive; distribute the 1/4 into the parentheses; subtract 3 = 12/4 from both sides y = 1/4 x - 13/4 Find the line through the point (1, -3) that is PERPENDICULAR to the line y = 1/4 x - 2. Perpendicular means the slope flipped and switched, i.e. m = 1/4 --> m = -(4/1) = - 4 y - y1 = m(x - x1) <-- po
@hartnn maybe u can help
please
what exactly is you doubt ? for 1st Q, y = 1/4 x - 13/4 is correct ..
for 2nd Q,next step is y - -3 = (-4) (x - 1) <-- plug in the point and the slope can you solve further to get the equation?
not really
what is your question
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