The difference of course is the symbol between the f and g letters.
The circle notation means we're doing a function composition.
Writing is the same as saying where g is the inner function.
Here's an example
f(x) = x^2
g(x) = 3x
f( g(x) ) = ( g(x) )^2 ... note how x is replaced with g(x)
f( g(x) ) = ( 3x )^2
f( g(x) ) = 9x^2
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On the other hand, the dot notation means we multiply the f(x) and g(x) functions.
Going back to the previous example, we could say
Answer:
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Step-by-step explanation:
Answer:
the number must be greater than 6.7 Therefore the sum is negative
6.7-7=-0.3
Answer: x= -2/3
Step-by-step explanation: 0= -3x-2
Move the variable to the left and then divide both sides 3x=-2