63 decreased by twice vidya's score use v to represent vidya's score.

X+ y = 5 ; x - y =3 solve using linear combination

Identify the initial amount a and the growth factor b in the exponential function. a(x)=680*4.3^x

Describe the end behavior of the function below. f(x)=(2/3)^x-2 a. as x increases, f(x) approaches infinity. b. as x decreases, f(x) approaches 2. c. as x increases, f(x) approaches -2. d. as x decreases, f(x) approaches negative infinity.