Answer:
Step-by-step explanation:
If x is inversely porportionaly to y, then for some constant k,
Since y is 4 when x = 18, k is equal to 4*18=72, so the equation is:
48 cups because there are 8 cups in a bottle and 8 times 6 is 48
If you subtract x from each side, it says Y = -x .
That tells you that the slope of the graph is -1, and the y-intercept is zero.
The graph is a straight line, passing through the origin.
It slopes DOWN from left to right, at an angle of 45 degrees.
It's C)
the graph is decrasing, so the variable rate is negative (-2/3)
the rest was quite easy, you just take a look at where the graph cuts the y-axis and determine the rest from the rate of going up or down (increase/decrease)
