Why is a data point with an x-coordinate of 0 a good point to use when creating a trend line for a data set? The graph shows the altitude of a weather balloon over time. The trend line passes through the points (0,485) and (10,400). Write the equation of a trend line for the data shown in the graph. After how many minutes is the balloon at an altitude of 459.5 feet above sea level?

i do not know the answer i am sorry

pakistan's principal natural resources are arable land and water. about 25% of pakistan's agriculture accounts for about 21% [1] of gdp and employs about 43% of the labour force. in pakistan, the most agricultural province is punjab where wheat and cotton are the most grown.

48+y= ?

the y is the variable and the ? could also be a variable  

answers

m = 0

n = 0.

explanation

most of the values are negative. the one that are not negative are the excluded   values.

these values are: m = 0

                              n = 0.