Answer:
an integer plus its opposite sum zero. The opposite of a number is called the additive inverse because the two numbers' sum is zero.
Answer:
The constant of proportionality is 2.50
Step-by-step explanation:
For a weight of 1 lb, the price is $2.50, so the price in dollars is related to the weight in pounds by the constant 2.50.
The constant of proportionality is 2.50 (dollars per pound).
The first values are the x axis, wich are sideways but the second values are y axis wich are up and down so since you havent given much context they are 10 -10 and 0
