Posted by ashley on Wednesday, February 17, 2010 at 10:38am.
write equation of line that passes through the point
1)parallel to the given line
2)perpendicular to the given line
- calculus - Damon, Wednesday, February 17, 2010 at 10:53am
Write equations in the form
y = m x + b
then m is the slope
then put the coordinates in to get b
in this case
9 y = 9 x + 144
y = 1 x + 16
slope is 1 so parallel is
y = x + b
2 = 6 + b
b = -4
so for parallel y = x - 4
9 y = 9 x - 36
9x - 9y = 36
So I get none of the above for the parallel line. Typo?
- calculus - ashley, Wednesday, February 17, 2010 at 11:07am
sorry I can't seem to type this morning
b) para -9x+9y=-36
- calculus - Damon, Wednesday, February 17, 2010 at 11:13am
ok for parallel
y = -x +b
2 = -6+b
b = 8
y = -1x + 8
9y = -9x + 72
-9x - 9y = -72 yes
Answer this Question
More Related Questions
- Algebra 1 - Write an equation in slope-intercept form for a line that passes ...
- Math - For the given point and line, find by projection the point on the line ...
- math - I need help with "write in equation in slope-intercept form for the line ...
- Calculus - Write an equation of the line that passes through the point (i) ...
- Math - If S is the subspace of R^3 containing only the zero vector, what is S ...
- Pre- Algebra - Given an equation of a line, how do I find equations for lines ...
- college alg - Find (a) the equation of a line that is parallel to the given line...
- Geometry - How do I write an equation of a line perpendicular to the graph of -...
- Algebra 1 - Tell whether the lines for the pair of equations are parallel, ...
- precalculus - Find (a) the equation of a line that is parallel to the given ...