One of the points on the previous graph is the ordered pair(6,$15). what does the point represent? how can you use that order pair to find the unit rate, or constant of proportionality?

Each ordered pair represents the number of crates and the corresponding cost. You can find the unit rate by using division to find the y-value when the x-value is 1.

Step-by-step explanation:

  2087568668/1  

step-by-step explanation:

check the picture below.

well, the angle at the vertex d is clearly not a right-angle, let's check for the one at the vertex f which does look like,   however if it's indeed, that means ef is perpendicular to df, in which case their slopes will be negative reciprocal of each other.

so the negative reciprocal of the slope of ef is 1, however the slope of df is not 1, is 1/2, so nope, they're not perpendicular lines.