Yes, as the value of x increases so does the value of y hence they are (directly) proportional
$150 because the supply number is equivalent to the demand number

so, is just that product, recall to use "<span>3.1416 as the value of π".</span>
Hey You!
Ten to the power of two = 100
So, when 42.6 is divided by 100, Sue should move the decimal 2 places to the left (before the 4).
42.6 ÷ 100 = 0.426
We can use the distance formula to find the distance between these points.
Distance formula: 
√(-5 - 6)² + (-3 - (-3))²
√121 = 11
The difference between the points is 11.