Algebra, easy problem
posted by Larry
Find the value of k so that the line containing the points (−4,1) and (k,−2) is perpendicular to the line containing the points (−9,5) and (−5,0).

Steve
slope of given line: 5/4
slope of ┴ line: 4/5
(21)/(k+4) = 4/5
solve for k
Respond to this Question
Similar Questions

calculus
Find an equation for the surface consisting of all points P(x, y, z) equidistant from the point P(0, 1, 0) and the plane x = 3. Answer Choices: 1. y2 + z2 − 6x + 2y − 8 = 0 2. x2 + z2 + 6y − 2z − 8 = 0 3. y2 … 
algebra ll
Which choice is the equation of a line that passes through the point (5, –1) and is perpendicular to the line represented by this equation? 
biology
Given the part of the molecule shown below, can the underlined atom participate in a hydrogen bond with an approriate bonding partner? 
Math Homework HELP!
Find the value of k so that the line containing the points (k,−8) and (−3,−5) is parallel to the line containing the points (9,7) and (12,5). 
Math, HELP!! UGENT!
Find the value of k so that the line containing the points (−8,8) and (2,k) is perpendicular to the line containing the points (14,−8) and (9,−6). 
Math
Find the value of k so that the line containing the points (k,−8) and (−3,−5) is parallel to the line containing the points (9,7) and (12,5). 
Algebra Homework
Find the value of k so that the line containing the points (−5,0) and (k,−2) is parallel to the line y=(5/9)x−2 
algebra
Which choice is the equation of a line that passes through the point (5, –1) and is perpendicular to the line represented by this equation? 
MATH HELP
Which of the following statements best describes the graph of 4x − y = 1? 
math
(a) If K(−3, − x) and L(3,−4) are such that KL is perpendicular to MN with M(− 5, −6) and N(−3,− 5), find the value of x. (b) The curve y = ax2 + bx + c passes through the points (0, 2) and …