ACORRDING TO QUSTION 19081987:
The value of g(-2), g(0) and g(5) are -6, 0 and 15 respectivey
Given the expression g(x) = 3x
In order to get the given functions, we will substitute the given variable into the function as shown;
a) For the value g(-2)
Substitute x = -2 into the function
g(-2) = 3(-2)
g()-2 = -6
b) For the value g(0)
Substitute x = 0 into the function
g(0) = 3(0)
g(0) = 0
c) For the value g(5)
Substitute x = 5 into the function
g(5) = 3(5)
g(5) = 15
Hence the value of g(-2), g(0) and g(5) are -6, 0 and 15 respectively