Question 754771
Suppose that the functions f and f are defined for all real numbers x as follows 
f(x)=4x-3 
g(x)=5x 
Write the expressions for (f-g)(x)and(f · g)(x) and evaluate (f+g)(1) 
(f-g)(x)= f(x)-g(x) = -x-3
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(f*g)(x)=f(x)*g(x) = 20x^2-15x
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(f+g)(1)= f(x)+g(x) = 9x-3
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Cheers,
Stan H.
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