Question

Please help me with this question

The graph below shows magazine subscriptions each month for 6 months.

Which equation represents the relationship between x, the number of months and y the number of magazine subscriptions sold?

x + y = 30
y = 30x
y = 30 - x
y = x/30

Answer 1

Y=30x. The answer is probably Y=30x but I highly think it’s that.

Answer 2

The incorrect graph is attached.

first choice: y = 30x

second choice: y = x/30

Explanation:

The bad news: The graph you attached shows the relationship between numbers of markers and numbers of packages. (y = 8x)

The good news: all proportional relationships are expressed using an equation in the form of y = kx, where k is the constant of proportionality.

So of your choices, y = 30x would be my first answer, and y = x/30 would be my second. Because y = x/30 is the same as y = (1/30)(x).

If there is no accompanying graph, go with y = 30x, as it's not as tricky