Which system of equations does the graph represent? y = -x-4
y = 2x - 2

y=-x+4
y = 2x - 4

y = x - 4
y = -2x - 2

y = x + 4
y = -2x - 4

The amount of energy it takes to lift a box might be a function of which of the following

On a string instrument, the length of a string varies inversely as the frequency of its vibrations. an 11-inch string has a frequency of 400 cylces per second. find the frequency of a 10-icnch string.

Can anyone with some algebra 1 homework? : )