SOLUTION: Please help me solve {{{ if the slope of a line is -2 write the equation of a line passnig through the point (3,1) }}}

Algebra ->  Equations -> SOLUTION: Please help me solve {{{ if the slope of a line is -2 write the equation of a line passnig through the point (3,1) }}}      Log On


   



Question 97065: Please help me solve
Answer by mathslover(157) About Me  (Show Source):
You can put this solution on YOUR website!
any line can be represented by a linear eqn
y = mx +c where m is the slope of the line and c the y- intercept
since its given that (3,1) are points on this line therefore we have
1 = -2.3 + c (slope is given to be -2)
c= 7
substituting the value of m and c in the general eqn of line y=mx +c we have
y = -2x + 7