Answer:
f(x) = 
Step-by-step explanation:
h(x) is defined by the formula,
h(x) = -4f(x) + 7
If the graph attached is of the function 'h' and we have to find the function 'f',
h(x) - 7 = -4f(x)
4.f(x) = -h(x) + 7
f(x) = 
Therefore, function 'f' will be defined by,
f(x) = 
This would be 45.9
Get a calculator or try long division :-)
The mean of the numbers is 5.8