What is -9 and 4/5 - 4 and 3/5
1 answer:
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Answer:
A.
Step-by-step explanation:
We have been given a table that represents the altitude of an airplane with passing minutes.
Since we know that equation of a line in slope-intercept form is: , where, m = Slope of the line and b = y-intercept.
To find the equation of line we will have to the slope of our given line using values from table.
, where,
= Change in two y-coordinates.
= Change in the corresponding x-coordinates.
Upon substituting the coordinates of point (1, 35000) and (2, 31000) we will get our slope as:
Now let us find y-intercept of our given line by substituting m=-4000 and the coordinates of point (1, 35000) in slope intercept form of equation.
Upon substituting the value of slope and y-intercept the equation of line will be:
Therefore, the equation representing the change in altitude a after m minutes is and option A is the correct choice.