Question

The graph of which of the following will be parallel to the graph of y = 2x – 4?

2x + y = 4 (i think this one is right)
4x - 2y = -12
y = -4x + 8
y = 3x + 4

Answer 1

the slope of graph = 2
the correct option will also have slope of 2

Answer 2

So was I right? Since the original one has 2x and so did the answer I chose? because in ' y = mx + b' the 'm' stands for slope? They both have 2?

Answer 3

no that one is not right
rearrangge it to the form y = mx + b

you get
y = -2x + 4

which has a slope of -2 not 2

Answer 4

you need to rearrange the functions to the form y = mx + b so you can compare them with the function in the question

Answer 5

the last 2 cannot be parallel as they have slopes of -4 and 3

Answer 6

So would it be the second one? If you divide 4 by two it would be 2? I already eliminated the last option.

Answer 7

convert the second one to y = mx + b form and see what you get

Answer 8

4x - 2y = 12
4x - 12 = 2y
2y = 4x - 12
y = 2x - 6

yes