Tell whether the lines for each pair of equations are parallel, perpendicular, or neither. x + 5y = –20

y = –x – 1

32x – 28y = –36

Question

Tell whether the lines for each pair of equations are parallel, perpendicular, or neither. x + 5y = –20
 
y = –x – 1

32x – 28y = –36

anonymous · Answer

there are three equations there

anonymous · Answer

the first one is with the question and i have to see what the other two are to that equation

anonymous · Answer

To find the normals of the line arrange in x + y form and then find the coefficient of the variables.

Find the normals of the lines and compare them, n1 = (1,5) , n2 = (1,1), n3=(32,-28)

so both of them are neither, as they are not multiples of the first line nor do they become 0 when you find a dot product.

anonymous · Answer

thank you :)

anonymous · Answer

are the answers correct? do you have an answer key?