Sunday

December 21, 2014

December 21, 2014

Posted by **Rudy** on Monday, October 8, 2012 at 9:54pm.

Point(7,1) Line(-5x-5y=90)

- Calculus -
**Reiny**, Monday, October 8, 2012 at 10:14pmThe given line is -5x - 5y = 90

or , dividing by -5

x+y = -18

since the new line is parallel to it, its equation differs only in the costant, so let the new equation be

x+y = c , but (7,1) lies on it, so

7+1=c = 8

equation: x+y=8

If perpendicular, then the slop must be negative reciprocal : -1 ----> 1/1 = 1

new equation:

x-y = k

but (7,1) on it, so

7-1 = k = 6

x - y = 6

**Answer this Question**

**Related Questions**

Algebra 1 - Write an equation in slope-intercept form for a line that passes ...

math - I need help with "write in equation in slope-intercept form for the line ...

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...

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 ...

math - i have more than one question so if u no any of the answers please tell ...

MAT221 - consider the line 8x-5y=-4 find the equation of the line that is ...

calculus - write equation of line that passes through the point 1)parallel to ...

ap calculus - write the general form of the equation of the lines throught the ...