For these type of calculations its just a straightforward substitutation. So for g=5 we put in 5 for g. So that's 11(5) = 55
if you evaulated the expression for g=7 it would be 11(7) = 77 etc... for all whole number values of g.
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explain how to evaluate an algebraic expression for given variables. how would we evaluate the expression "3x-4y+9" when x=2and y=5?
When x = 2, 3x + 5 = 11.
5gz = 5 x 3 x 4 = 60
Interpreting the question as "evaluate f(x) = -x2 + 5 for x = 4". This is the same as asking "what is f(4)". To evaluate f(4) just replace each instance of the x in the definition of f(x) by the number 4: f(4) = -42 + 5. The result is -11.
5(5) is 25. 3(-2) is (-6). The expression becomes 25 - (-6). When subtracting a negative number, you actually "add the opposite," so the expression is now 25 + 6 (positive 6 is "the opposite" of -6); the value is 31.