SOLUTION: i need help solving this problem, g(x)=2x-1 a. find the domain of g b. use the formula for g(x) shown in the graph to evulate g(-1) and g(2) c. use the graph to evaulate g(-1) a

Algebra ->  Rational-functions -> SOLUTION: i need help solving this problem, g(x)=2x-1 a. find the domain of g b. use the formula for g(x) shown in the graph to evulate g(-1) and g(2) c. use the graph to evaulate g(-1) a      Log On


   



Question 52307This question is from textbook
: i need help solving this problem, g(x)=2x-1
a. find the domain of g
b. use the formula for g(x) shown in the graph to evulate g(-1) and g(2)
c. use the graph to evaulate g(-1) and g(2)
This question is from textbook

Answer by funmath(2933) About Me  (Show Source):
You can put this solution on YOUR website!
a. There is nothing that x is not allowed to be in this function, so the domain is all real numbers.
b. g(x)=2x-1
g(-1)=2(-1)-1
g(-1)=-2-1
g(-1)=-3
g(2)=2(2)-1
g(2)=4-1
g(2)=3
c. When the horizontal value (x) is -1, the vertical value (g(x) or y) is -3.
When the horizontal value (x) is 2, the vertical value (g(x) or y) is 3.
graph%28300%2C200%2C-10%2C10%2C-10%2C10%2C2x-1%29