Question

Which of the following lines is not parallel to the graph of y = 9x + 1?
9y – x = 2
y – 9x = 3
9x – y = 2
27x – 3y = 2

Answer 1

first put them in the same format y = mx + b like y = 9x + 1

m is the slope of the graph, in this case slope = 9
parallel lines have same slope

Answer 2

y=x/9+2/9
y=9x+3
y=9x-2
y=9x-2/3

Answer 3

@hartnn

Answer 4

@nphuongsun93

Answer 5

out of those 4 lines, which one doesn't have m = 9?

Answer 6

the first one

Answer 7

yup there u go

Answer 8

thanks!