Sal finds the y-intercept and the slope of a linear relationship representing a top secret file transfer. He then interprets what the y-intercept and the slope mean in that context.
Interpreting linear formulas word problems is a free educational video by Khan Academy.It helps students in grades 8 practice the following standards 8.F.A.3.
1. 8.F.A.3 : Interpret the equation y = mx + b as defining a linear function, whose graph is a straight line; give examples of functions that are not linear. For example, the function A = s^2 giving the area of a square as a function of its side length is not linear because its graph contains the points (1,1), (2,4) and (3,9), which are not on a straight line..
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