Answer:
(f-g)(-3) = -14
Explanation:
We have given two functions and we have to find their difference.
f(x) = 4x and g(x) = -3x-7
(f-g)(x) = ? and (f-g)(-3) = ?
The formula to find the difference of two functions is:
(f-g)(x) = f(x)-g(x)
Putting the given values in above formula, we have
(f-g)(x) = 4x-(-3x-7)
(f-g)(x) = 4x+3x+7
(f-g)(x) = 7x+7
Putting x = -3 in above formula,we have
(f-g)(-3) =7(-3)+7
(f-g)(-3) = -21+7
(f-g)(-3) = -14 which is the answer.