SOLUTION: y=-x+7, y-x=3 find out if the equation lines are perpendicular

Question 444510: y=-x+7, y-x=3
find out if the equation lines are perpendicular
Answer by chriswen(106) (Show Source): You can put this solution on YOUR website!
so first you convert the equations to y=mx+b.
y=-x+7 ... (i)
y-x=3
y=x+3 ... (ii)
m is the slope.
(i) slope of -1
(ii) slope of 1
For two lines to be perpendicular the products of the slopes is -1.
m1 * m2=-1
(-1)*(1)=
-1=-1
Since the products of both slopes is -1 therefore both lines are perpendicular to each other.
RELATED QUESTIONS
y = x +7, y= -x +2, determine whether the lines are parallel, perpendicular,... (answered by solver91311)

identify the lines that are perpendicular: y=4; y=3x; x=4;... (answered by Seutip)

If 3x+ky=7 and y=3-4x are two equations of two different lines find �k� if the lines are... (answered by josgarithmetic,ikleyn)

Are the following lines parallel, perpendicular, or neither? L1 with equation x � 7y... (answered by checkley75,Cintchr)

Determine whether the lines are parallel, perpendicular or neither 3y = x - 6 3x - y =... (answered by ewatrrr)

Decide whether the lines with the equation 5y-x=15 and y+5x=2 are... (answered by mananth)

Write the system of equations that has (3.-4) as its only solution and both lines are... (answered by ikleyn)

Are the following lines parallel, perpendicular, or neither? L1 with equation x-4y=12 (answered by misscrt)

x+4=y y-x=-3 determine whether the graphs of the equations are perpendicular... (answered by Alan3354)