SOLUTION: If f is a linear function, f(0.1) = 9.3, and f(0.4) = −6.3, find an equation f(x) for the function. f(x) =

Algebra ->  Numeric Fractions Calculators, Lesson and Practice -> SOLUTION: If f is a linear function, f(0.1) = 9.3, and f(0.4) = −6.3, find an equation f(x) for the function. f(x) =       Log On


   

Question 1053475: If f is a linear function, f(0.1) = 9.3, and f(0.4) = −6.3, find an equation f(x) for the function.
f(x) =
Answer by CubeyThePenguin(3113) About Me  (Show Source):
You can put this solution on YOUR website!
f(0.1) = 9.3
f(0.4) = -6.3

slope: (-6.3-9.3)/(0.4-0.1) = -52

Plug in the point (0.1, 9.3)

9.3 = -52(0.1) + b
b = 14.5

The equation is y = -52x + 14.5