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Graph the function with the given description. A linear function f models a relationship in which the dependent variable decreases 4 units for every 2 units t

Graph the function with the given description.

A linear function f
models a relationship in which the dependent variable decreases 4 units for every 2 units the independent variable increases. The value of the function at 0
is −2
.
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1 Answer

f(t) = at + b
 
a = slope = -4/2 = -2
 
f(t) = -2t + b
 
f(0) = -2 ⇒ b = -2
 
f(t) = -2t - 2 = -2(t + 1) 
 
This forum is not set up for graphing, but the plot is a straight line passing through (0,-2) and (-1,0).