urrrrkimberlouis urrrrkimberlouis

26-11-2016
Mathematics

contestada

suppose f(x)=4x/3+5 and g(x)=x/3+1. solve for x when f(x)=g(x)
A). x=?
B). and what is the value of f(x) at that solution?

Respuesta :

JcAlmighty JcAlmighty

29-11-2016

Q1. The answer is x = -4.

f(x)=4x/3+5
g(x)=x/3+1

4x/3+5 = x/3+1
4x/3 - x/3 = 1 - 5
(4x - x)/3 = -4
3x/3 = -4
x = -4

Q2. The answer is -1/3

f(x)=4x/3+5
x = -4
f(-4) = 4*(-4)/3 + 5 = -16/3 + 15/3 = (-16 + 15)/3 = -1/3

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